Lua APA (7ú heag.)

Howell, W. C. (1976). Essentials of industrial and organizational psychology. Dorsey Press.

Lua i Stíl Chicago (17ú heag.)

Howell, William C. Essentials of Industrial and Organizational Psychology. Homewood, Illinois: Dorsey Press, 1976.

Lua MLA (9ú heag.)

Howell, William C. Essentials of Industrial and Organizational Psychology. Dorsey Press, 1976.

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