Westing, J., & Fine, I. (1969). Purchasing Management: Materials in Motion (Third edition.). New York: John Wiley & Sons.
Stile di citazione ChicagoWesting, J.H., e I.V Fine. Purchasing Management: Materials in Motion. Third edition. New York: John Wiley & Sons, 1969.
Citazione MLAWesting, J.H., e I.V Fine. Purchasing Management: Materials in Motion. Third edition. New York: John Wiley & Sons, 1969.
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