Παραπομπή APA

Berry, M. V. (2005). Principles of cosmology and gravitation (1st Indian ed.).

Παραπομπή Chicago Style

Berry, Michael V. Principles of Cosmology and Gravitation. 1st Indian ed. New Delhi Overseas, 2005.

Παραπομπή MLA

Berry, Michael V. Principles of Cosmology and Gravitation. 1st Indian ed. 2005.