Gaya APA

P. Fraser Johnson, PhD. (2020). Purchasing and Supply Management (16). New York: Mc Graw Hill.

Gaya Chicago

P. Fraser Johnson, PhD. Purchasing and Supply Management. 16 New York: Mc Graw Hill, 2020. Text.

Gaya MLA

P. Fraser Johnson, PhD. Purchasing and Supply Management. 16 New York: Mc Graw Hill, 2020. Text.

Gaya Turabian

P. Fraser Johnson, PhD. Purchasing and Supply Management. 16 New York: Mc Graw Hill, 2020. Print.