Uehara, Goro. The mineralogy, chemistry, and physics of tropical soils with variable charge clays / by Goro Uehara and Gavin P. Gillman. - Boulder, Colo. : Westview Press, 1981. - 170 p. : ill . ; 24 cm . - Westview tropical agriculture series ; v.4 . Includes bibliographies and index. ISBN: 0891584846 24.50 (est.) Subjects--Topical Terms: Clay soils--Tropics.Soils--Tropics.