Cita APA

Essinger, J., & Wylie, H. (1999). The seven deadly skills of competing. London: International Thomson Business Press.

Chicago Style Citation

Essinger, James., i Helen Wylie. The Seven Deadly Skills of Competing. London: International Thomson Business Press, 1999.

Cita MLA

Essinger, James., i Helen Wylie. The Seven Deadly Skills of Competing. London: International Thomson Business Press, 1999.

Atenció: Aquestes cites poden no estar 100% correctes.