Gaya APA

Gamble, J, E., Jr., A, A, T. (2011). Essentials of Strategic Management The Quest for Competitive Advantage (Second Edition). United States: McGraw-Hill International Edition.

Gaya MLA

Gamble, John, E.., Jr., Arthur, A., Thompson. "Essentials of Strategic Management The Quest for Competitive Advantage". Second Edition United States: McGraw-Hill International Edition, 2011. Text.