Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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