Gopalakrishnan, R. (1991). Political geography of India's North East. Vikas.
Style de citation Chicago (17e éd.)Gopalakrishnan, Ramamoorthy. Political Geography of India's North East. New Delhi: Vikas, 1991.
Style de citation MLA (9e éd.)Gopalakrishnan, Ramamoorthy. Political Geography of India's North East. Vikas, 1991.
Attention : ces citations peuvent ne pas être correctes à 100%.