Citace podle APA (7th ed.)

Proctor, W. M. (1929). Vocations: The world's work and its workers. Houghton Mifflin Company.

Citace podle Chicago (17th ed.)

Proctor, William Martin. Vocations: The World's Work and Its Workers. Boston : New York [etc.]: Houghton Mifflin Company, 1929.

Citace podle MLA (8th ed.)

Proctor, William Martin. Vocations: The World's Work and Its Workers. Houghton Mifflin Company, 1929.

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