Παραπομπή APA

Singh, S. (2011). Geography for State Civil Services and other competitive examinations. Mc Graw Hill.

Παραπομπή Chicago Style

Singh, Surender. Geography for State Civil Services and Other Competitive Examinations. New Delhi: Mc Graw Hill, 2011.

Παραπομπή MLA

Singh, Surender. Geography for State Civil Services and Other Competitive Examinations. Mc Graw Hill, 2011.