Dyfyniad APA

Opie, I. A. (1993). The people in the playground. Oxford University Press.

Dyfyniad Arddull Chicago

Opie, Iona Archibald. The People in the Playground. Oxford: Oxford University Press, 1993.

Dyfyniad MLA

Opie, Iona Archibald. The People in the Playground. Oxford University Press, 1993.

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