Gaya APA
Silverstein, B. (2007).
Evaluating Performance: How to Appraise, Promote, and Fire .
New York:
HarperCollins Books.
Gaya MLA
Silverstein, Barry.
"Evaluating Performance: How to Appraise, Promote, and Fire".
New York:
HarperCollins Books,
2007.
Art Original.