00383nam a2200145Ia 4500008004100000082001800041100001600059245004000075260004500115300000700160650001400167650002000181653001000201653002600211170901s1983    xx            000 0 und d  a333.913bG39W  aGiriappa, S 0aWater Use Efficiency in Agriculture  aNew DelhibOxford University Pressc1983  a97  aEconomics  aSocial sciences  aIndia  aIrrigation efficiency