Παραπομπή APA
Martin, C. (2005). Tough management: The 7 ways to make tough decisions easier, deliver the numbers, and grow business in good times and bad. New York: McGraw-Hill.
Παραπομπή Chicago StyleMartin, Chuck. Tough Management: The 7 Ways to Make Tough Decisions Easier, Deliver the Numbers, and Grow Business in Good Times and Bad. New York: McGraw-Hill, 2005.
Παραπομπή MLAMartin, Chuck. Tough Management: The 7 Ways to Make Tough Decisions Easier, Deliver the Numbers, and Grow Business in Good Times and Bad. New York: McGraw-Hill, 2005.
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