Style de citation APA (7e éd.)
Becker, D., & Becker, P. B. (1993). Speaking skills for business careers. Irwin Mirror Press.
Style de citation Chicago (17e éd.)
Becker, Dennis, et Paula Borkum Becker. Speaking Skills for Business Careers. Homewood, IL: Irwin Mirror Press, 1993.
Style de citation MLA (9e éd.)
Becker, Dennis, et Paula Borkum Becker. Speaking Skills for Business Careers. Irwin Mirror Press, 1993.
Attention : ces citations peuvent ne pas être correctes à 100%.