Brown, L. R., & Eckholm, E. P. (1974). By bread alone. Praeger.
Lua i Stíl Chicago (17ú heag.)Brown, Lester Russell, agus Erik P. Eckholm. By Bread Alone. New York: Praeger, 1974.
Lua MLA (8ú heag.)Brown, Lester Russell, agus Erik P. Eckholm. By Bread Alone. Praeger, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.