Blewitt, M. (1973). Celestial navigation for yachtsmen (5th ed.). Stanford.
Chicago Style aipamenaBlewitt, Mary. Celestial Navigation for Yachtsmen. 5th ed. London: Stanford, 1973.
MLA aipamenaBlewitt, Mary. Celestial Navigation for Yachtsmen. 5th ed. Stanford, 1973.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.