Dyfyniad APA

Blewitt, M. (1973). Celestial navigation for yachtsmen (5th ed.). Stanford.

Dyfyniad Arddull Chicago

Blewitt, Mary. Celestial Navigation for Yachtsmen. 5th ed. London: Stanford, 1973.

Dyfyniad MLA

Blewitt, Mary. Celestial Navigation for Yachtsmen. 5th ed. Stanford, 1973.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.