Garland, George D. Introduction to geophysics : mantle, core, and crust / George D. Garland - 2nd ed. - London : W. B. Saunders Company, c1979. - xv, 494 p. : ill. ; 26 cm Includes index Subjects--Topical Terms: Geophysics. Dewey Class. No.: 550 / GAI 1979