Citazione Stile APA (7a Edizione)

Singh, Y. P. (2006). Textbook for class IX: Geography. V. K. Enterprises.

Citazione stile Chigago Style (17a edizione)

Singh, Yash Pal. Textbook for Class IX: Geography. New Delhi: V. K. Enterprises, 2006.

Citatione MLA (9a ed.)

Singh, Yash Pal. Textbook for Class IX: Geography. V. K. Enterprises, 2006.