Παραπομπή APA

Singh, N. K. (2004). Encyclopedia of the world scientists (10 Volumes). APH Publishing Corporation.

Παραπομπή Chicago Style

Singh, Nagendra Kr. Encyclopedia of the World Scientists (10 Volumes). New Delhi: APH Publishing Corporation, 2004.

Παραπομπή MLA

Singh, Nagendra Kr. Encyclopedia of the World Scientists (10 Volumes). APH Publishing Corporation, 2004.