APA استشهاد

Narlikar, J. V. (1996). The lighter side of gravity (2nd ed.). Cambridge University Press.

استشهاد بنمط شيكاغو

Narlikar, Jayant Vishnu. The Lighter Side of Gravity. 2nd ed. Cambridge: Cambridge University Press, 1996.

MLA استشهاد

Narlikar, Jayant Vishnu. The Lighter Side of Gravity. 2nd ed. Cambridge University Press, 1996.