Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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