Não informado. (1974). Journal of Purchasing and Materials Management. National Association of Purchasing Management.
Citace podle Chicago (17th ed.)Não informado. Journal of Purchasing and Materials Management. Oradell, NJ: National Association of Purchasing Management, 1974.
Citace podle MLA (8th ed.)Não informado. Journal of Purchasing and Materials Management. National Association of Purchasing Management, 1974.
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