Shepard, G. (2005). How to make performance evaluations really work: A step-by-step guide complete with sample words, phrases, forms, and pitfalls to avoid. John Wiley.
Chicago-tyylinen lähdeviittausShepard, Glenn. How to Make Performance Evaluations Really Work: A Step-by-step Guide Complete With Sample Words, Phrases, Forms, and Pitfalls to Avoid. John Wiley, 2005.
MLA-viiteShepard, Glenn. How to Make Performance Evaluations Really Work: A Step-by-step Guide Complete With Sample Words, Phrases, Forms, and Pitfalls to Avoid. John Wiley, 2005.
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