APA (7e ed.) Bronvermelding

Barrat, C., & Whitehead, M. (2004). Buying for business: Insights in purchasing and supply management. Wiley.

Chicago (17e ed.) Bronvermelding

Barrat, Christopher, en Mark Whitehead. Buying for Business: Insights in Purchasing and Supply Management. Chichester, West Sussex: Wiley, 2004.

MLA (9e ed.) Bronvermelding

Barrat, Christopher, en Mark Whitehead. Buying for Business: Insights in Purchasing and Supply Management. Wiley, 2004.