Gaya APA

LEENDERS, M, R., JOHNSON, P, F. (2006). PURCHASING AND SUPPLY MANAGEMENT: With 50 Supply Chain Cases (13th). New York: MCGRAW-HILL.

Gaya MLA

LEENDERS, Michiel, R., JOHNSON, P, Fraser. "PURCHASING AND SUPPLY MANAGEMENT: With 50 Supply Chain Cases". 13th New York: MCGRAW-HILL, 2006. Text.