APA (7th ed.) Citation

Blewitt, M. (1967). Celestial navigation for yachtsmen (Rev. American ed.). John de Graff.

Chicago Style (17th ed.) Citation

Blewitt, Mary. Celestial Navigation for Yachtsmen. Rev. American ed. Tuckahoe, N. Y.: John de Graff, 1967.

MLA (9th ed.) Citation

Blewitt, Mary. Celestial Navigation for Yachtsmen. Rev. American ed. John de Graff, 1967.