Dyfyniad APA

Sigurðsson, O., & Williams, R. S. (2008). Geographic names of Iceland's glaciers. U. S. Geological Survey professional paper 1746.

Dyfyniad Arddull Chicago

Sigurðsson, Oddur, and Richard S. Williams. "Geographic Names of Iceland's Glaciers." U. S. Geological Survey Professional Paper 1746 2008.

Dyfyniad MLA

Sigurðsson, Oddur, and Richard S. Williams. "Geographic Names of Iceland's Glaciers." U. S. Geological Survey Professional Paper 1746 2008.

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