Sundram, K., & Nangia, s. (1985). population geography. Heritage Publishers.
Cita Chicago (17th ed.)Sundram, K.V, i sudesh Nangia. Population Geography. New Delhi: Heritage Publishers, 1985.
Cita MLA (9th ed.)Sundram, K.V, i sudesh Nangia. Population Geography. Heritage Publishers, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.