Lua APA (7ú heag.)

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.

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