Gaya APA

Gordon, J. (2004). The Pfeiffer Book of Successful Communication Skill-Building Tools; The Most Enduring, Effective, and Valuable Training Activities for Improving Interpersonal Communication . San Francisco: Pfeiffer.

Gaya MLA

Gordon, Jack. "The Pfeiffer Book of Successful Communication Skill-Building Tools; The Most Enduring, Effective, and Valuable Training Activities for Improving Interpersonal Communication". San Francisco: Pfeiffer, 2004. Text.