Dyfyniad APA

Bradley, W. F. (1963). Clays and clay minerals: :Proceedings of the eleventh national conference on clays and clays minerals. Pergamon press.

Dyfyniad Arddull Chicago

Bradley, W. F. Clays and Clay Minerals: :Proceedings of the Eleventh National Conference on Clays and Clays Minerals. New york: Pergamon press, 1963.

Dyfyniad MLA

Bradley, W. F. Clays and Clay Minerals: :Proceedings of the Eleventh National Conference on Clays and Clays Minerals. Pergamon press, 1963.

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