APA استشهاد

Bondi, H. (1968). Cosmology (2d ed.). University Press.

استشهاد بنمط شيكاغو

Bondi, Hermann. Cosmology. 2d ed. Cambridge: University Press, 1968.

MLA استشهاد

Bondi, Hermann. Cosmology. 2d ed. University Press, 1968.