Lua APA (7ú heag.)

Chapin, F. S. (1920). Field work and social research. The Century.

Lua i Stíl Chicago (17ú heag.)

Chapin, Francis Stuart. Field Work and Social Research. New York: The Century, 1920.

Lua MLA (9ú heag.)

Chapin, Francis Stuart. Field Work and Social Research. The Century, 1920.

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