Velde, B. Introduction to clay minerals : chemistry, origins, uses, and environmental significance / B. Velde. - 1st ed. - London ; New York : Chapman & Hall, 1992. - vii, 198 p. : ill. ; 24 cm. Includes bibliographical references (p. 36-40) and index. ISBN: 0412370301 Subjects--Topical Terms: Clay--AnalysisClay minerals Subjects--Index Terms: Clay minerals Dewey Class. No.: 549.6