Data of sesmological observatories 1975- / 
National Geophysical Research Institute, Council of Scientific and Industrial Research, Hyderabad 
 - Hyderabad :  National Geophysical Research Institute,  1975- 
 - v. :  ill., charts, maps ;  28 cm. 
<br/><br/> Library has 1975 - 1976 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Seisnology--Hyderabad<br/>Seismology--Observations--Hyderabad
<br/><br/><label>Dewey Class. No.: </label>551.22083