APA (7th ed.) Citation

Feynman, R. P., Leighton, R. B., Sands, M., & Davies, P. C. W. (1995). Six easy pieces: Essentials of physics, explained by its most brilliant teacher. Helix Books.

Chicago Style (17th ed.) Citation

Feynman, Richard Phillips, Robert B. Leighton, Matthew Sands, and P. C. W. Davies. Six Easy Pieces: Essentials of Physics, Explained by Its Most Brilliant Teacher. Reading: Helix Books, 1995.

MLA (9th ed.) Citation

Feynman, Richard Phillips, et al. Six Easy Pieces: Essentials of Physics, Explained by Its Most Brilliant Teacher. Helix Books, 1995.

Warning: These citations may not always be 100% accurate.