APA-viite

Khanna, K., & Gupta, V. (1978). Economic and commercial geography. Sultanchand & Sons.

Chicago-tyylinen lähdeviittaus

Khanna, K.K, ja V.K Gupta. Economic and Commercial Geography. New Delhi: Sultanchand & Sons, 1978.

MLA-viite

Khanna, K.K, ja V.K Gupta. Economic and Commercial Geography. Sultanchand & Sons, 1978.