Lund, C. A. (1972). Coastal and deep sea navigation for yachtsmen (6th ed.). Brown.
Dyfyniad Arddull ChicagoLund, C A. Coastal and Deep Sea Navigation for Yachtsmen. 6th ed. Glasgow: Brown, 1972.
Dyfyniad MLALund, C A. Coastal and Deep Sea Navigation for Yachtsmen. 6th ed. Brown, 1972.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.