Davison, Charles, 1858-1940. A manual of seismology / by Charles Davison, Sc. D. - The University press, 1921. - xi, [1], 256 p. : ill. (incl. maps), diagrs. (1 fold.) ; 22 cm. - Cambridge geological series . Bibliographical foot-notes. LCCN: gs 21000431 Subjects--Topical Terms: Seismology. Subjects--Index Terms: სეისმოლოგია LC Class. No.: QE534 / .D255 Universal Decimal Class. No.: 550.34(07)