Παραπομπή APA
Frey, B. S., & Osterloh, M. (2002). Successful management by motivation: Balancing Intrinsic and Extrinsic Incentives. Berlin: Springer.
Παραπομπή Chicago StyleFrey, Bruno S., and Margit Osterloh. Successful Management By Motivation: Balancing Intrinsic and Extrinsic Incentives. Berlin: Springer, 2002.
Παραπομπή MLAFrey, Bruno S., and Margit Osterloh. Successful Management By Motivation: Balancing Intrinsic and Extrinsic Incentives. Berlin: Springer, 2002.
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