Hapgood, Charles H. Earth's shifting crust / by Charles H. Hapgood ; with the collaboration of James H. Campbell - London : Museum Press Limited, 1959 - [viii], 438 p. : ill. ; 22 cm. Includes index Bibliography: p. 396-420 ISBN: O. P. 19.7 Subjects--Topical Terms: Earth--Crust Dewey Class. No.: 551.13