APA引文

Parkash, K., Chug, O. P., & Dahiya, R. (2008). Topics in geometry. Firewall Media.

Chicago Edition Citation

Parkash, Kulbhushan, Om P. Chug, and R.S Dahiya. Topics in Geometry. Cochin: Firewall Media, 2008.

MLA引文

Parkash, Kulbhushan, et al. Topics in Geometry. Firewall Media, 2008.