Cita APA (7a ed.)
Stuart, G. E. (1969). Discovering man's past in the Americas. National Geographic Society.
Cita Chicago Style (17a ed.)
Stuart, George E. Discovering Man's Past in the Americas. Washington: National Geographic Society, 1969.
Cita MLA (9a ed.)
Stuart, George E. Discovering Man's Past in the Americas. National Geographic Society, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.