Dyfyniad APA

Harvey, C. (1992). Selling in a week. Hodder & Stoughton.

Dyfyniad Arddull Chicago

Harvey, Christine. Selling in a Week. London: Hodder & Stoughton, 1992.

Dyfyniad MLA

Harvey, Christine. Selling in a Week. Hodder & Stoughton, 1992.

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