Dyfyniad APA

Willsmer, R. (1984). The basic part of marketing (2.). Business Books.

Dyfyniad Arddull Chicago

Willsmer, Ray. The Basic Part of Marketing. 2. London: Business Books, 1984.

Dyfyniad MLA

Willsmer, Ray. The Basic Part of Marketing. 2. Business Books, 1984.

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