APA استشهاد

Peebles, P. J. E. (1993). Principles of physical cosmology. Princeton University Press.

استشهاد بنمط شيكاغو

Peebles, P. J. E. Principles of Physical Cosmology. New Jersey: Princeton University Press, 1993.

MLA استشهاد

Peebles, P. J. E. Principles of Physical Cosmology. Princeton University Press, 1993.