Boron : Vol. - 2, Preparation, properties, and applications : based on papers presented at the 1964 Paris International Symposium on Boron. Edited by, Gerhart K. Gaule. Boron Environmental aspects. Boron Toxicology. 546.671 21 GAB Includes Index. Includes bibliographical references (p. 158-179) New York : Plenum, c1965. c1965. 1965 Text xv, 345 p. : eng