Technical report 1952    part III - geodetic work 

 - Dehradun  Surveyor General of India  1953 
 - 90p.  maps, photos 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GravityGsiLevellingObservatoriesTidesTriangulation
<br/><br/><label>Universal Decimal Class. No.: </label>528.3  / TEC