Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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