Parker, J. (2007). The illustrated world guide to submarines. Hermes house.
Dyfyniad Arddull ChicagoParker, John. The Illustrated World Guide to Submarines. London: Hermes house, 2007.
Dyfyniad MLAParker, John. The Illustrated World Guide to Submarines. Hermes house, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.