Dyfyniad APA

Barney, J. B. (2002). Gaining and sustaining competitive advantage (2nd ed.). Prentice-Hall of India.

Dyfyniad Arddull Chicago

Barney, Jay B. Gaining and Sustaining Competitive Advantage. 2nd ed. New Delhi: Prentice-Hall of India, 2002.

Dyfyniad MLA

Barney, Jay B. Gaining and Sustaining Competitive Advantage. 2nd ed. Prentice-Hall of India, 2002.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.