Dyfyniad APA

(1989). Institute of marine engineers. Marine management.

Dyfyniad Arddull Chicago

Institute of Marine Engineers. England: Marine management, 1989.

Dyfyniad MLA

Institute of Marine Engineers. Marine management, 1989.

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