Style de citation APA (7e éd.)

Vengel, A. A. (2000). The influence edge: How to persuade others to help you achieve your goals. Berrett-Koehler Publishers.

Style de citation Chicago (17e éd.)

Vengel, Alan A. The Influence Edge: How to Persuade Others to Help You Achieve Your Goals. San Francisco, CA: Berrett-Koehler Publishers, 2000.

Style de citation MLA (8e éd.)

Vengel, Alan A. The Influence Edge: How to Persuade Others to Help You Achieve Your Goals. Berrett-Koehler Publishers, 2000.