Hooper, J. E. The cosmic radiation / J. E. Hooper and M. Scharff - London : Methuen, 1958 - 176 p. : ill. ; 18 cm. - Methuen's monographs on physical subjects . Includes bibliographical references and index ISBN: 15.00 Subjects--Topical Terms: Cosmic rays Dewey Class. No.: 539.722