Principles of applied geophysics by D.S.Parasnis. Parasnis, D. S. Prospecting Geophysical methods. Geophysics. QE513 .P3 1962 551 PAP includes bibliographical references and index. London, Methuen; New York : Wiley, c1962. c1962. 1962 Text vii, 176 p. : eng Methuen's monographs on physical subjects