Cita APA

MacDonald, M., Hoopis, H., Chiron, R. J., Tracy, B., Holmes, C., & Irwin, R. (2007). The power of coaching: The secrets of achievement. United States of America: PLI Publishing.

Citación estilo Chicago

MacDonald, Machen,, Harry Hoopis, Robert J. Chiron, Brian Tracy, Chet Holmes, y Robert Irwin. The Power of Coaching: The Secrets of Achievement. United States of America: PLI Publishing, 2007.

Cita MLA

MacDonald, Machen,, et al. The Power of Coaching: The Secrets of Achievement. United States of America: PLI Publishing, 2007.