Cita APA

OBrien, D. A. (2006). The Penguin-CRY quiz book 1.

Chicago Edition Citation

OBrien, Derek; Author. The Penguin-CRY Quiz Book 1. New Delhi, Penguin Books India(P) Ltd, 2006.

Cita MLA

OBrien, Derek; Author. The Penguin-CRY Quiz Book 1. 2006.