Velde, B. Introduction to Clay Minerals : Chemistry, Origins, Uses and Environmental Significance / by B. Velde - London: Chapman and Hall, 1992. - viii, 198p. ISBN: 9.7804123703e+012 Subjects--Topical Terms: CeramicsClay MineralsEarth ScienceOrigin of Clay Dewey Class. No.: 553.61 / VEL/I