Dyfyniad APA

Johnson, S. D. (1998). Who moved my Cheese? Vermilion.

Dyfyniad Arddull Chicago

Johnson, Spencer Dr. Who Moved My Cheese? London: Vermilion, 1998.

Dyfyniad MLA

Johnson, Spencer Dr. Who Moved My Cheese? Vermilion, 1998.

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