Dyfyniad APA

Proctor, W. M. (1933). Vocations: The world's work and its workers (Rev. and enl. ed.). Houghton Mifflin Company.

Dyfyniad Arddull Chicago

Proctor, William Martin. Vocations: The World's Work and Its Workers. Rev. and enl. ed. Boston : New York [etc.]: Houghton Mifflin Company, 1933.

Dyfyniad MLA

Proctor, William Martin. Vocations: The World's Work and Its Workers. Rev. and enl. ed. Houghton Mifflin Company, 1933.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.