Dyfyniad APA

Wallace, A. R. (1914). Social environment and moral progress. Funk and Wagnalls.

Dyfyniad Arddull Chicago

Wallace, Alfred Russel. Social Environment and Moral Progress. New York: Funk and Wagnalls, 1914.

Dyfyniad MLA

Wallace, Alfred Russel. Social Environment and Moral Progress. Funk and Wagnalls, 1914.

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