Παραπομπή APA
Maynard, H. H. 1., & Beckman, T. N. 1. (1952). Principles of marketing (5th ed., revised by Theodore N. Beckman with the assistance of William R. Davidson.). New York: Ronald Press Co..
Παραπομπή Chicago StyleMaynard, Harold H. 1889-1957, and Theodore N. 1895-1973 Beckman. Principles of Marketing. 5th ed., revised by Theodore N. Beckman with the assistance of William R. Davidson. New York: Ronald Press Co., 1952.
Παραπομπή MLAMaynard, Harold H. 1889-1957, and Theodore N. 1895-1973 Beckman. Principles of Marketing. 5th ed., revised by Theodore N. Beckman with the assistance of William R. Davidson. New York: Ronald Press Co., 1952.
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