Dyfyniad APA

Harper, M. (1971). None can guess. Hodder and Stoughton.

Dyfyniad Arddull Chicago

Harper, Michael. None Can Guess. London: Hodder and Stoughton, 1971.

Dyfyniad MLA

Harper, Michael. None Can Guess. Hodder and Stoughton, 1971.

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