Kimball, C. (2007). Ultimate book of business letters: Customize your letters, memos, e-mails and presentations with the enclosed CD-ROM. Entrepreneur Press.
Chicago-Zitierstil (17. Ausg.)Kimball, Cheryl. Ultimate Book of Business Letters: Customize Your Letters, Memos, E-mails and Presentations with the Enclosed CD-ROM. Irvine, CA: Entrepreneur Press, 2007.
MLA-Zitierstil (9. Ausg.)Kimball, Cheryl. Ultimate Book of Business Letters: Customize Your Letters, Memos, E-mails and Presentations with the Enclosed CD-ROM. Entrepreneur Press, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.