Παραπομπή APA

Hawking, S. W. (2003). On the shoulders of the giants: Great works of physics and astronomy. Viva Books.

Παραπομπή Chicago Style

Hawking, Stephen W. On the Shoulders of the Giants: Great Works of Physics and Astronomy. New delhi: Viva Books, 2003.

Παραπομπή MLA

Hawking, Stephen W. On the Shoulders of the Giants: Great Works of Physics and Astronomy. Viva Books, 2003.