Παραπομπή APA

Ahmad Khan, Z. M. D. (1998). Practical geography, text book of.

Παραπομπή Chicago Style

Ahmad Khan, Zulfequar M D. Practical Geography, Text Book of. Newdelhi, Concept Publishing Co, 1998.

Παραπομπή MLA

Ahmad Khan, Zulfequar M D. Practical Geography, Text Book of. 1998.