APA (7th ed.) Citation

Pirsig Robert M. (2004). Zen and the Art of Motorcycle Maintenance (40th.). Vintage Books.

Chicago Style (17th ed.) Citation

Pirsig Robert M. Zen and the Art of Motorcycle Maintenance. 40th. Vintage Books, 2004.

MLA (9th ed.) Citation

Pirsig Robert M. Zen and the Art of Motorcycle Maintenance. 40th. Vintage Books, 2004.

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