Henderson, C. R. (1898). Social elements, institutions, characters, progress. C. Scribner's sons.
Lua i Stíl Chicago (17ú heag.)Henderson, Charles Richmond. Social Elements, Institutions, Characters, Progress. New York: C. Scribner's sons, 1898.
Lua MLA (8ú heag.)Henderson, Charles Richmond. Social Elements, Institutions, Characters, Progress. C. Scribner's sons, 1898.
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