Cita APA

Becker, D., & Becker, P. B. (1993). Speaking skills for business careers. McGraw-Hill.

Citación estilo Chicago

Becker, Dennis, and Paula Borkum Becker. Speaking Skills for Business Careers. New York: McGraw-Hill, 1993.

Cita MLA

Becker, Dennis, and Paula Borkum Becker. Speaking Skills for Business Careers. McGraw-Hill, 1993.