Citazione APA

Pirsig, R. M. (2004). Zen and the art of motorcycle maintenance: An inquiry into values. Vintage Books.

Stile di citazione Chicago

Pirsig, Robert M. Zen and the Art of Motorcycle Maintenance: An Inquiry into Values. London: Vintage Books, 2004.

Citazione MLA

Pirsig, Robert M. Zen and the Art of Motorcycle Maintenance: An Inquiry into Values. Vintage Books, 2004.