000 00472 a2200157 4500
080 _a621.95
_bN277R
245 1 _aResearch and development proposals for drilling, mud and cement
260 _aIndia
_bNational Committee on Science & Technology
_c1972
650 _aDrilling
650 _aMud and Cement
700 _aNational Committee on Science & Technology
100 _a
_d
300 _a73 p.
040 _aIARI, New Delhi
901 _a122025
999 _c77483
_d77483