Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Warning: These citations may not always be 100% accurate.