Cita APA

Tracy, B. (2007). The Art of Closing the Sale. AMACOM.

Citación estilo Chicago

Tracy, Brain. The Art of Closing the Sale. New York: AMACOM, 2007.

Cita MLA

Tracy, Brain. The Art of Closing the Sale. AMACOM, 2007.

Warning: These citations may not always be 100% accurate.