Dyfyniad APA

Blewitt, M. (1971). Celestial navigation for yachtsmen (5th ed.). Edward.

Dyfyniad Arddull Chicago

Blewitt, Mary. Celestial Navigation for Yachtsmen. 5th ed. London: Edward, 1971.

Dyfyniad MLA

Blewitt, Mary. Celestial Navigation for Yachtsmen. 5th ed. Edward, 1971.

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