Cita APA (7a ed.)

Johnson, P. F., & Leenders, M. R.. (2006). Purchasing and supply management (14th ed.). McGraw Hill.

Cita Chicago Style (17a ed.)

Johnson, P. Fraser, y Michiel R. Leenders. Purchasing and Supply Management. 14th ed. Boston: McGraw Hill, 2006.

Cita MLA (9a ed.)

Johnson, P. Fraser, y Michiel R. Leenders. Purchasing and Supply Management. 14th ed. McGraw Hill, 2006.