Heizer, R. F. (1962). Man's discovery of his past: Literary landmarks in archaeology. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Heizer, Robert Fleming. Man's Discovery of His Past: Literary Landmarks in Archaeology. Englewood Cliffs, N.J: Prentice-Hall, 1962.
Lua MLA (9ú heag.)Heizer, Robert Fleming. Man's Discovery of His Past: Literary Landmarks in Archaeology. Prentice-Hall, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.