APA استشهاد

Hawking, S., & Mlodinow, L. (2010). The grand design. Bantam Books.

استشهاد بنمط شيكاغو

Hawking, Stephen, و Leonard Mlodinow. The Grand Design. New York: Bantam Books, 2010.

MLA استشهاد

Hawking, Stephen, و Leonard Mlodinow. The Grand Design. Bantam Books, 2010.