Khanna, K. K., & Gupta, V. K. (1972). Economic and commercial geography (2nd. ed.). S.Chand & Co..
Citación estilo ChicagoKhanna, K. K., and V. K. Gupta. Economic and Commercial Geography. 2nd. ed. S.Chand & Co., 1972.
Cita MLAKhanna, K. K., and V. K. Gupta. Economic and Commercial Geography. 2nd. ed. S.Chand & Co., 1972.
Warning: These citations may not always be 100% accurate.