Dyfyniad APA

Tiffin, J., & McCormick, E. J. (1971). Industrial Psychology/5e (5h ed.). Prentice Hall.

Dyfyniad Arddull Chicago

Tiffin, Joseph, and Ernest J. McCormick. Industrial Psychology/5e. 5h ed. New Delhi: Prentice Hall, 1971.

Dyfyniad MLA

Tiffin, Joseph, and Ernest J. McCormick. Industrial Psychology/5e. 5h ed. Prentice Hall, 1971.

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