Gaya APA

Davies, H., Lam, P. (2001). Managerial economics : an analysis of business issues (3rd ed). Harlow: Prentice Hall.

Gaya MLA

Davies, Howard., Lam, Pun-Lee. "Managerial economics : an analysis of business issues". 3rd ed Harlow: Prentice Hall, 2001. Text.