Cita APA (7th ed.)

Tyson, K. W. (1997). Competition in the 21st century. St. Lucie Press.

Cita Chicago (17th ed.)

Tyson, Kirk W.M. Competition in the 21st Century. Delray Beach, FL: St. Lucie Press, 1997.

Cita MLA (9th ed.)

Tyson, Kirk W.M. Competition in the 21st Century. St. Lucie Press, 1997.

Atenció: Aquestes cites poden no estar 100% correctes.