Cameron, R., Samuelson, T., & Kent, C. (1992). Above Chicago: A new collection of historical and original aerial photographs of Chicago. Cameron.
Chicago-referens (17:e uppl.)Cameron, Robert, Tim Samuelson, och Cheryl Kent. Above Chicago: A New Collection of Historical and Original Aerial Photographs of Chicago. San Francisco: Cameron, 1992.
MLA-referens (9:e uppl.)Cameron, Robert, et al. Above Chicago: A New Collection of Historical and Original Aerial Photographs of Chicago. Cameron, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.