Dyfyniad APA

Sixth National Conference on Clays and Clay Minerals. (1957). Clays and clay minerals. Pergamon Press.

Dyfyniad Arddull Chicago

Sixth National Conference on Clays and Clay Minerals. Clays and Clay Minerals. New York: Pergamon Press, 1957.

Dyfyniad MLA

Sixth National Conference on Clays and Clay Minerals. Clays and Clay Minerals. Pergamon Press, 1957.

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