Menaker, E., & Menaker, W. (1965). Ego in evolution. Grove Press.
Lua i Stíl Chicago (17ú heag.)Menaker, Esther, agus William Menaker. Ego in Evolution. New York: Grove Press, 1965.
Lua MLA (9ú heag.)Menaker, Esther, agus William Menaker. Ego in Evolution. Grove Press, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.