Dyfyniad APA

Norby, H. (1944). Questions and answers for deck officers. McGraw hill.

Dyfyniad Arddull Chicago

Norby, H. Questions and Answers for Deck Officers. New york: McGraw hill, 1944.

Dyfyniad MLA

Norby, H. Questions and Answers for Deck Officers. McGraw hill, 1944.

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