APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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