APA استشهاد

Basu, B. .. a. (2010). Introduction to asrtophysics (2nd. ed.). PHI Learning.

استشهاد بنمط شيكاغو

Basu, Baidyanath .et al. Introduction to Asrtophysics. 2nd. ed. New Delhi: PHI Learning, 2010.

MLA استشهاد

Basu, Baidyanath .et al. Introduction to Asrtophysics. 2nd. ed. PHI Learning, 2010.