http://www.8yearstudy.org/index.html Aikin, Wilford M. Adventure In American Education Volume I: The Story of the Eight-Year Study" Publisher: Harper and Brothers;New York and London. 1st edition (1942). ASIN: B000CEBXUU. retrieved November 20, 2006
Edwin H. Clark designed many buildings in Chicago and its North Shore suburbs, including Winnetka Village Hall, Plaza del Lago in Wilmette, the Lincoln Park Zoo Reptile House, and the Chicago Zoological Park along with many private residences. http://digital-libraries.saic.edu/cdm/ref/collection/findingaids/id/14436