APA (7th ed.) Citation

Feynman, R. P., & Poe, R. (2005). Perfectly reasonable deviations from the beaten track: The letters of richard p. feynman (Unabridged.). Recorded Books Inc..

Chicago Style (17th ed.) Citation

Feynman, Richard P., and Richard Poe. Perfectly Reasonable Deviations from the Beaten Track: The Letters of Richard P. Feynman. Unabridged. Prince Frederick: Recorded Books Inc., 2005.

MLA (8th ed.) Citation

Feynman, Richard P., and Richard Poe. Perfectly Reasonable Deviations from the Beaten Track: The Letters of Richard P. Feynman. Unabridged. Recorded Books Inc., 2005.

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