Παραπομπή APA

Niebel, B. W., & Freivalds, A. (1999). Methods, standards, and work design (10th ed.). Boston: WCB/McGraw-Hill.

Παραπομπή Chicago Style

Niebel, Benjamin W., and Andris Freivalds. Methods, Standards, and Work Design. 10th ed. Boston: WCB/McGraw-Hill, 1999.

Παραπομπή MLA

Niebel, Benjamin W., and Andris Freivalds. Methods, Standards, and Work Design. 10th ed. Boston: WCB/McGraw-Hill, 1999.

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