Singh, . G. (1983). A Geography of India (4th ed.). Atma Ram.
Cita Chicago (17th ed.)Singh, Gopal. A Geography of India. 4th ed. Delhi: Atma Ram, 1983.
Cita MLA (9th ed.)Singh, Gopal. A Geography of India. 4th ed. Atma Ram, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.