APA-referens (7:e uppl.)

Group of American officers at San Roque. Our islands and their people..

Chicago-referens (17:e uppl.)

"Group of American Officers at San Roque." Our Islands and Their People. .

MLA-referens (9:e uppl.)

"Group of American Officers at San Roque." Our Islands and Their People., .

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.