Blewitt, M. (1973). Celestial navigation for yachtsmen (5th ed.). Stanford.
Čikaški stil citiranjaBlewitt, Mary. Celestial Navigation for Yachtsmen. 5th ed. London: Stanford, 1973.
MLA način citiranjaBlewitt, Mary. Celestial Navigation for Yachtsmen. 5th ed. Stanford, 1973.
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