00447nam a2200145Ia 450000500170000000800460001703700290006304000210009204100130011308400210012624500330014724500600018026000480024030000130028820250508155547.0008  250505s9999    xx            000 0 eng d  aBooks to be hide in OPAC  aFEDL bengcFEDL  aeng2eng  a551, IND/OqFEDL 0aQuinquennial report: 1949-53 0cIndia, Government of India. Central Board of Geophysics  aDelhi, IndiabManager of Publicationsc1955  aiv,111p.