United States earthquakes 1949 / by Leonard M. Murphy and F-ranklin P. Ulrich
Murphy, Leonard M.
United States earthquakes 1949 / by Leonard M. Murphy and F-ranklin P. Ulrich - Washington, D.C. : U.S. Coast and Geodetic Survey - [67] p. - Serial ; no.748 .
United States earthquakes 1949 / by Leonard M. Murphy and F-ranklin P. Ulrich - Washington, D.C. : U.S. Coast and Geodetic Survey - [67] p. - Serial ; no.748 .