APA-referens

(1973). last two million years: History of man. Readers Digest Association.

Chicago-stil citat

Last Two Million Years: History of Man. London: Readers Digest Association, 1973.

MLA-referens

Last Two Million Years: History of Man. Readers Digest Association, 1973.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.