Παραπομπή APA

Feynman, R. P. (2003). Feynman lectures on gravitation.

Παραπομπή Chicago Style

Feynman, Richard P. Feynman Lectures on Gravitation. Westview Press, Cambridge, 2003.

Παραπομπή MLA

Feynman, Richard P. Feynman Lectures on Gravitation. 2003.