Cita APA (7a ed.)

(2012). The official guide to TOEFL. Tata Mc Graw Hill.

Cita Chicago Style (17a ed.)

The Official Guide to TOEFL. New Delhi: Tata Mc Graw Hill, 2012.

Cita MLA (9a ed.)

The Official Guide to TOEFL. Tata Mc Graw Hill, 2012.