Cita APA (7a ed.)

Roberts, K. (1985). Youth and leisure. George Allen & Unwin.

Cita Chicago Style (17a ed.)

Roberts, Kenneth. Youth and Leisure. London [etc.]: George Allen & Unwin, 1985.

Cita MLA (9a ed.)

Roberts, Kenneth. Youth and Leisure. George Allen & Unwin, 1985.