APA (7th ed.) Citation

Khan, F. [. K. (1970). Introduction to economic geography (6th ed.). Green Book.

Chicago Style (17th ed.) Citation

Khan, F. [Fazle] Karim. Introduction to Economic Geography. 6th ed. Dhaka: Green Book, 1970.

MLA (9th ed.) Citation

Khan, F. [Fazle] Karim. Introduction to Economic Geography. 6th ed. Green Book, 1970.