Data of Seismological observatories, 1975 / 
National Geophysical Research Institute, Council of Scientific and Industrial Research 
 - Hyderabad :  National Geophysical Research Institute (Hyderabad), Council of Scientific and Industrial Research (India),  1975 
 - 119 p. :  maps ;  28 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Seismology
<br/><br/><label>Dewey Class. No.: </label>551.22083