Dyfyniad APA

EUROPA PUBLICATIONS LIMITDE. (1986). The world of learning 1987 (ed.37.). Europa Publications limited.

Dyfyniad Arddull Chicago

EUROPA PUBLICATIONS LIMITDE. The World of Learning 1987. ed.37. London: Europa Publications limited, 1986.

Dyfyniad MLA

EUROPA PUBLICATIONS LIMITDE. The World of Learning 1987. ed.37. Europa Publications limited, 1986.

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