The identification of detrital feldspars / L. van der Plas. Plas, L. van der (Leendert), 1928- Feldspar. Mineralogy, Determinative. QE389.62 .P65 553.69 VAI Includes bibliographical references and index. Amsterdam ; New York : Elsevier Pub. Co., 1966. 1966. 1966 Text xi, 305 p. : eng Developments in sedimentology ; 6