Semiconductors and semimetals : by, Harold J. Hovel Vol. - 2, Solar Clls / Hovel, Harold J. Willardson, R. K. (Robert Kent), 1923- Beer, Albert C. Semiconductors. Semimetals. QC610.9 .S47 537.622 HOS Editors vary for individual vols. Vol. 7 issued in 2 pts., vol. 21 in 4 pts., vol. 22 in 5 pts. Includes bibliographical references and indexes. New York : Academic Press, c1975 c1975 1975 Text xix, 254 p. : d