Παραπομπή APA

Sivaram, C., & Sastry, A. (2004). Introduction to astrobiology. University Press.

Παραπομπή Chicago Style

Sivaram, C., και Ajay Sastry. Introduction to Astrobiology. Hyderabad: University Press, 2004.

Παραπομπή MLA

Sivaram, C., και Ajay Sastry. Introduction to Astrobiology. University Press, 2004.