Παραπομπή APA
Warfel, M. C., & Waskey, F. H. (1979). The professional food buyer: Standards, principles, and procedures. Berkeley: McCutchan Pub..
Παραπομπή Chicago StyleWarfel, Marshall C., and Frank H. Waskey. The Professional Food Buyer: Standards, Principles, and Procedures. Berkeley: McCutchan Pub., 1979.
Παραπομπή MLAWarfel, Marshall C., and Frank H. Waskey. The Professional Food Buyer: Standards, Principles, and Procedures. Berkeley: McCutchan Pub., 1979.
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