Cita APA (7th ed.)

Barney, J. B. (2011). Gaining and sustaining competitive advantage (4th ed.). Pearson.

Cita Chicago (17th ed.)

Barney, Jay B. Gaining and Sustaining Competitive Advantage. 4th ed. Upper Saddle River, NJ: Pearson, 2011.

Cita MLA (8th ed.)

Barney, Jay B. Gaining and Sustaining Competitive Advantage. 4th ed. Pearson, 2011.