Gopalakrishnan, R. (1991). Political geography of India's North East. Vikas.
Citación estilo ChicagoGopalakrishnan, Ramamoorthy. Political Geography of India's North East. New Delhi: Vikas, 1991.
Cita MLAGopalakrishnan, Ramamoorthy. Political Geography of India's North East. Vikas, 1991.
Warning: These citations may not always be 100% accurate.