APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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