Dyfyniad APA

Kimball, C. (2007). Entrepreneur magazine’s ultimate book of sales letters: Customize your letters, memos, E-Mails and presentations with the enclosed CD-ROM. [Irvine, CA.]: Entrepreneur Press.

Dyfyniad Arddull Chicago

Kimball, Cheryl. Entrepreneur Magazine’s Ultimate Book of Sales Letters: Customize Your Letters, Memos, E-Mails and Presentations With the Enclosed CD-ROM. [Irvine, CA.]: Entrepreneur Press, 2007.

Dyfyniad MLA

Kimball, Cheryl. Entrepreneur Magazine’s Ultimate Book of Sales Letters: Customize Your Letters, Memos, E-Mails and Presentations With the Enclosed CD-ROM. [Irvine, CA.]: Entrepreneur Press, 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.