APA-viite

Chopra,S, Chopra , S. ., & Chawla , H. .. M.. (1992). Lasers in chemical and biological sciences. Wiley eastern Ltd.

Chicago-tyylinen lähdeviittaus

Chopra,S, S. Chopra , ja H . M. Chawla. Lasers in Chemical and Biological Sciences. New Delhi: Wiley eastern Ltd, 1992.

MLA-viite

Chopra,S, et al. Lasers in Chemical and Biological Sciences. Wiley eastern Ltd, 1992.