Dyfyniad APA

Wood, O. P. ,., & Pitcher, G. . .. (1970). Ryle. Mac Millan Press.

Dyfyniad Arddull Chicago

Wood, Oscar P ,Ed, and George,Ed Pitcher. Ryle. London: Mac Millan Press, 1970.

Dyfyniad MLA

Wood, Oscar P ,Ed, and George,Ed Pitcher. Ryle. Mac Millan Press, 1970.

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