Tepper, R. (1993). The consultant's proposal, fee, and contract problem-solver. New York: John Wiley & Sons, Inc.
Παραπομπή Chicago StyleTepper, Ron. The Consultant's Proposal, Fee, and Contract Problem-solver. New York: John Wiley & Sons, Inc, 1993.
Παραπομπή MLATepper, Ron. The Consultant's Proposal, Fee, and Contract Problem-solver. New York: John Wiley & Sons, Inc, 1993.
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