Cita APA (7th ed.)

OBrien, D. (2005). The Penguin India reference yearbook -2005. Penguin Books India.

Cita Chicago (17th ed.)

OBrien, Derek. The Penguin India Reference Yearbook -2005. New delhi: Penguin Books India, 2005.

Cita MLA (9th ed.)

OBrien, Derek. The Penguin India Reference Yearbook -2005. Penguin Books India, 2005.