Παραπομπή APA

Haimann, T., & Hilgert, R. L. (1977). Supervision: Concepts and practices of management (2d ed.). Cincinnati: South-Western Pub. Co..

Παραπομπή Chicago Style

Haimann, Theo., and Raymond L. Hilgert. Supervision: Concepts and Practices of Management. 2d ed. Cincinnati: South-Western Pub. Co., 1977.

Παραπομπή MLA

Haimann, Theo., and Raymond L. Hilgert. Supervision: Concepts and Practices of Management. 2d ed. Cincinnati: South-Western Pub. Co., 1977.

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