APA (7th ed.) Citation

Harkins, P. J. (1999). Powerful conversations: How high-impact leaders communicate. McGraw-Hill.

Chicago Style (17th ed.) Citation

Harkins, Phillip J. Powerful Conversations: How High-impact Leaders Communicate. New York: McGraw-Hill, 1999.

MLA (9th ed.) Citation

Harkins, Phillip J. Powerful Conversations: How High-impact Leaders Communicate. McGraw-Hill, 1999.