Photoelectric tubes Sommer, A. H. (Alfred Hermann) 1909-2003 creator text enk London Methuen c1951 1951 [2d ed., rev. and reset] monographic eng
print
viii, 118 p. : ill. ; 18 cm. A. H. Sommer Includes bibliographical references and index. Photoelectric cells QC715 .S667 1951 621.342 SOP Methuen's monographs on physical subjects 52003131 DLC 751208 20150118104707.0 7905385