Παραπομπή APA

Hair, J. F., Notturno, F. L., Russ, F. A., & Kirkpatrick, C. A. (1991). Effective selling (8th ed.). Cincinnati: College Division, South-Western Pub. Co..

Παραπομπή Chicago Style

Hair, Joseph F., Francis L. Notturno, Frederick A. Russ, and Charles Atkinson Kirkpatrick. Effective Selling. 8th ed. Cincinnati: College Division, South-Western Pub. Co., 1991.

Παραπομπή MLA

Hair, Joseph F., Francis L. Notturno, Frederick A. Russ, and Charles Atkinson Kirkpatrick. Effective Selling. 8th ed. Cincinnati: College Division, South-Western Pub. Co., 1991.

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