APA-referens (7:e uppl.)

Federal Writers. Our Washington. A comprehensive album of the nation's capital in words and pictures.

Chicago-referens (17:e uppl.)

Federal Writers. Our Washington. A Comprehensive Album of the Nation's Capital in Words and Pictures.

MLA-referens (8:e uppl.)

Federal Writers. Our Washington. A Comprehensive Album of the Nation's Capital in Words and Pictures.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.