Haefele, Fred.«The Lost Tribe of Indian»(en anglès).American Heritage Magazine. American Heritage Publishing,01-08-2005. Arxivat de l'original el 20 octubre 2007.
Wilson, Hugo.«The A-Z of Motorcycles». A: The Encyclopedia of the Motorcycle(en anglès). Londres:Dorling Kindersley,1995,p.104–105. ISBN 978-0-7513-0206-6.«When Excelsior created the 45cu. in. class with the introduction of its Super X model in 1925 (see p.59), Indian responded with a bored and stroked 45cu. in. version of the Scout, introduced alongside the original model in 1927.»
Roger T., Young«Road – The Story of the Century»(en anglès).American Motorcyclist.American Motorcyclist Association,48,9,9-1994,p.43. ISSN: 0277-9358[Consulta: 30 desembre 2011].
«1929 Indian 101 Scout»(en anglès).motorcyclemuseum.org. American Motorcyclist Association. Arxivat de l'original el 2012-09-20.[Consulta: 9 juliol 2011].«It incorporated a number of changes prompted by real-world racetrack experience with the original Scout, including a stronger frame, better suspension and steering, a 3-inch increase in wheelbase, increased fork rake, a low, 26¼-inch seat height, and a front brake.»
«1932 Indian Scout»(en anglès).motorcyclemuseum.org. American Motorcyclist Association. Arxivat de l'original el 2011-07-30.[Consulta: 9 juliol 2011].
«1936 Indian "Upside-Down" Four»(en anglès).motorcyclemuseum.org. American Motorcyclist Association,2010. Arxivat de l'original el 2011-01-11.[Consulta: 13 gener 2011].«A dual-carb setup, offered in 1937, didn't help, and by 1938, the "upside-down" Four was discontinued, replaced by a new "rightside-up" design.»
Catterson, Brian. Whatever Happened to Indian Motorcycles?(en anglès). Los Angeles, CA USA:Source Interlink,agost 2007[Consulta: 4 gener 2012].«The '90s seemingly brought another Indian revival each year. Some were pure goldbrickings (anyone still owed money by Philip Zhangi or Wayne Baughman?), while others-like the innovative Eller Indians designed by James Parker, engineered by Rousch [sic] Racing and financed by the real Indians of the Cow Creek Umpqua tribe-were more compelling.»
Shore, Sandy«Judge to rule on Indian motorcycle»(en anglès).The Daily Courier.Associated Press. Prescott Newspapers[Prescott, AZ USA],27-11-1998,p.1D[Consulta: 30 desembre 2011].
«Indian motorcycle»(en anglès).America on the Move. National Museum of American History, Smithsonian Institution.[Consulta: 10 gener 2014].«A major competitor to Harley-Davidson was the Indian Motocycle Company, which began in 1901 and ceased manufacturing motorcycles for the public in 1953. By far the most individual and distinctive Indian models were produced in the 1940s; they are characterized by flared, skirted mudguards that convey a strong sense of speed even while standing still.»
«1929 Indian 101 Scout»(en anglès).motorcyclemuseum.org. American Motorcyclist Association. Arxivat de l'original el 2012-09-20.[Consulta: 9 juliol 2011].«It incorporated a number of changes prompted by real-world racetrack experience with the original Scout, including a stronger frame, better suspension and steering, a 3-inch increase in wheelbase, increased fork rake, a low, 26¼-inch seat height, and a front brake.»
«1932 Indian Scout»(en anglès).motorcyclemuseum.org. American Motorcyclist Association. Arxivat de l'original el 2011-07-30.[Consulta: 9 juliol 2011].
Yesterdays, Martijn Best.«Classic Motorcycle Archive»(en anglès).motorarchive.com. Arxivat de l'original el 2021-04-26.[Consulta: 3 maig 2021].
«1936 Indian "Upside-Down" Four»(en anglès).motorcyclemuseum.org. American Motorcyclist Association,2010. Arxivat de l'original el 2011-01-11.[Consulta: 13 gener 2011].«A dual-carb setup, offered in 1937, didn't help, and by 1938, the "upside-down" Four was discontinued, replaced by a new "rightside-up" design.»
Haefele, Fred.«The Lost Tribe of Indian»(en anglès).American Heritage Magazine. American Heritage Publishing,01-08-2005. Arxivat de l'original el 20 octubre 2007.
«Classics: 1937 Indian Model 437»(en anglès).American Motorcyclist.American Motorcyclist Association[Westerville, Ohio, USA],45,8,8-1991,p.71. ISSN: 0277-9358.
Roger T., Young«Road – The Story of the Century»(en anglès).American Motorcyclist.American Motorcyclist Association,48,9,9-1994,p.43. ISSN: 0277-9358[Consulta: 30 desembre 2011].
