Dyfyniad APA

ebrary, Inc, & Newhouse, T. V. (2009). Coal mine safety. Nova Science Publishers.

Dyfyniad Arddull Chicago

ebrary, Inc, and Terrance V. Newhouse. Coal Mine Safety. New York: Nova Science Publishers, 2009.

Dyfyniad MLA

ebrary, Inc, and Terrance V. Newhouse. Coal Mine Safety. Nova Science Publishers, 2009.

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