Illingworth, J. H. (1969). Further Offshore: Ocean Racing, Fast Cruising, Modern Yacht Handling and Equipment (6th.). Granada.
Dyfyniad Arddull ChicagoIllingworth, Jonh. H. Further Offshore: Ocean Racing, Fast Cruising, Modern Yacht Handling and Equipment. 6th. London: Granada, 1969.
Dyfyniad MLAIllingworth, Jonh. H. Further Offshore: Ocean Racing, Fast Cruising, Modern Yacht Handling and Equipment. 6th. Granada, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.