APA引文

Khanna K K. Economic and commercial Geography (7 th ed.). Sultan Chand & Sons.

Chicago Edition Citation

Khanna K K. Economic and Commercial Geography. 7 th ed. New Delhi: Sultan Chand & Sons.

MLA引文

Khanna K K. Economic and Commercial Geography. 7 th ed. Sultan Chand & Sons.

警告：这些引文格式不一定是100％准确.