Easton, A. J Chemical analysis of silicate rocks / A.J. Easton. - Amsterdam : Elsevier , 1972. - xii, 256 p. : ill. ; 23 cm. - Methods in geochemistry and gephysics ; 6 . Subjects--Topical Terms: Rocks, Siliceous --Analysis------ Dewey Class. No.: 552.06 EAS