Sculle, Keith A. (July 1989). "The National Register of Historic Places National Park Service Preservation Possibilities National Park Service Frederick: A Historic Preservation Commission at Work National Park Service". The Public Historian. 11 (3): 92–94. doi:10.2307/3378617. ISSN0272-3433. JSTOR3378617.
Sculle, Keith A. (July 1989). "The National Register of Historic Places National Park Service Preservation Possibilities National Park Service Frederick: A Historic Preservation Commission at Work National Park Service". The Public Historian. 11 (3): 92–94. doi:10.2307/3378617. ISSN0272-3433. JSTOR3378617.
Sculle, Keith A. (July 1989). "The National Register of Historic Places National Park Service Preservation Possibilities National Park Service Frederick: A Historic Preservation Commission at Work National Park Service". The Public Historian. 11 (3): 92–94. doi:10.2307/3378617. ISSN0272-3433. JSTOR3378617.