Παραπομπή APA

Craig A Lockard. (2011). World. Cengage Learning India Pvt. Ltd.

Παραπομπή Chicago Style

Craig A Lockard. World. New Delhi: Cengage Learning India Pvt. Ltd, 2011.

Παραπομπή MLA

Craig A Lockard. World. Cengage Learning India Pvt. Ltd, 2011.