Dyfyniad APA

Lawrence, M. S. (1998). If you're not out selling, you're being outsold. New York: John Wiley & Sons.

Dyfyniad Arddull Chicago

Lawrence, Michael St. If You're Not Out Selling, You're Being Outsold. New York: John Wiley & Sons, 1998.

Dyfyniad MLA

Lawrence, Michael St. If You're Not Out Selling, You're Being Outsold. New York: John Wiley & Sons, 1998.

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