APA (7th ed.) Citation

Ahluwalia, H. P. S., & Ahluwalia, H. P. S. (2011). Tracing Marco Polo's journey: The Silk Route. Niyogi Books.

Chicago Style (17th ed.) Citation

Ahluwalia, H. P. S., and H. P. S.;Khanna Ahluwalia. Tracing Marco Polo's Journey: The Silk Route. Niyogi Books, 2011.

MLA (9th ed.) Citation

Ahluwalia, H. P. S., and H. P. S.;Khanna Ahluwalia. Tracing Marco Polo's Journey: The Silk Route. Niyogi Books, 2011.

Warning: These citations may not always be 100% accurate.