APA (7th ed.) Citation

Volkema, R. J. (2006). Leverage: How to get it and how to keep it in any negotiation. AMACOM.

Chicago Style (17th ed.) Citation

Volkema, Roger J. Leverage: How to Get It and How to Keep It in Any Negotiation. New York: AMACOM, 2006.

MLA (9th ed.) Citation

Volkema, Roger J. Leverage: How to Get It and How to Keep It in Any Negotiation. AMACOM, 2006.