APA (7th ed.) Citation

Duff, C. (1999). On Celtic tides: One man's journey around Ireland by sea kayak. St. Martin's Press.

Chicago Style (17th ed.) Citation

Duff, Chris. On Celtic Tides: One Man's Journey Around Ireland by Sea Kayak. New York: St. Martin's Press, 1999.

MLA (9th ed.) Citation

Duff, Chris. On Celtic Tides: One Man's Journey Around Ireland by Sea Kayak. St. Martin's Press, 1999.