Auel, J. M. (1991). The plains of passage. Bantam Books.
Lua i Stíl Chicago (17ú heag.)Auel, Jean M. The Plains of Passage. New York, Estados Unidos: Bantam Books, 1991.
Lua MLA (9ú heag.)Auel, Jean M. The Plains of Passage. Bantam Books, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.