Lua APA (7ú heag.)

Daugherty, C. R. (1933). Labor problems in American industry. Houghton Mifflin Co.

Lua i Stíl Chicago (17ú heag.)

Daugherty, Carroll Roop. Labor Problems in American Industry. Boston: Houghton Mifflin Co, 1933.

Lua MLA (9ú heag.)

Daugherty, Carroll Roop. Labor Problems in American Industry. Houghton Mifflin Co, 1933.

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