APA-referens (7:e uppl.)
Heizer, R. F. (1969). Man's discovery of his past: A sourcebook of original articles. Peek Publications.
Chicago-referens (17:e uppl.)
Heizer, Robert F. Man's Discovery of His Past: A Sourcebook of Original Articles. California: Peek Publications, 1969.
MLA-referens (9:e uppl.)
Heizer, Robert F. Man's Discovery of His Past: A Sourcebook of Original Articles. Peek Publications, 1969.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.