(1973). '74 New Norway. Export Council of Norway and Grondahl & Son.
Dyfyniad Arddull Chicago'74 New Norway. Oslo: Export Council of Norway and Grondahl & Son, 1973.
Dyfyniad MLA'74 New Norway. Export Council of Norway and Grondahl & Son, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.