Παραπομπή APA

Shergill,H S, & Sucha Singh Gill and Gurmail Singh. (2011). Understanding Norh-West indian economy. Serial publications.

Παραπομπή Chicago Style

Shergill,H S, και Sucha Singh Gill and Gurmail Singh. Understanding Norh-West Indian Economy. New Delhi: Serial publications, 2011.

Παραπομπή MLA

Shergill,H S, και Sucha Singh Gill and Gurmail Singh. Understanding Norh-West Indian Economy. Serial publications, 2011.