APA (7th ed.) Citation

Pumfrey, S. (2002). Latitude & the magnetic earth. Icon Books.

Chicago Style (17th ed.) Citation

Pumfrey, Stephen. Latitude & the Magnetic Earth. Duxford, Cambridge: Icon Books, 2002.

MLA (8th ed.) Citation

Pumfrey, Stephen. Latitude & the Magnetic Earth. Icon Books, 2002.

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