APA (7th ed.) Citation

Blewitt, M. (1997). Celestial navigation for yachtsmen. Adlard Coles nautical.

Chicago Style (17th ed.) Citation

Blewitt, Mary. Celestial Navigation for Yachtsmen. London: Adlard Coles nautical, 1997.

MLA (9th ed.) Citation

Blewitt, Mary. Celestial Navigation for Yachtsmen. Adlard Coles nautical, 1997.