Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.