Gaya APA

Gamble, J, E., Thompson, A. (2013). Essentials of Strategic Management: The Quest for Competitive Advantage 3ed (3). New York: McGraw-Hill.

Gaya MLA

Gamble, John, E., Thompson, Arthur. "Essentials of Strategic Management: The Quest for Competitive Advantage 3ed". 3 New York: McGraw-Hill, 2013. Printed.