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082 _a631 U-5R
100 _aUPPAL, H.L
245 0 _aResearch work carried out under Emeritus Scientists scheme(ICAR) ; annual report for the period ending November, 1971
300 _a298p
650 _aIRRIGATION
653 _aAGRICULTURAL ENGINEERING
653 _aIRRIGATION
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