Dyfyniad APA

Kranz, R., & Kranz, M. (1980). Professional selling, a practical approach. Van Nostrand.

Dyfyniad Arddull Chicago

Kranz, R.J, and M.K Kranz. Professional Selling, a Practical Approach. New York: Van Nostrand, 1980.

Dyfyniad MLA

Kranz, R.J, and M.K Kranz. Professional Selling, a Practical Approach. Van Nostrand, 1980.

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