Cockcroft, A. N., & Lameijer, J. N. F. (1976). A guide to the collision avoidance rules. Stanford maritime.
Dyfyniad Arddull ChicagoCockcroft, A N., and J N F. Lameijer. A Guide to the Collision Avoidance Rules. London: Stanford maritime, 1976.
Dyfyniad MLACockcroft, A N., and J N F. Lameijer. A Guide to the Collision Avoidance Rules. Stanford maritime, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.