00270nam a2200097Ia 4500008004100000020001800041082001700059100001300076245005000089260003300139220204s9999    xx            000 0 und d  a9788183762182  a631.674bRAO  aRao, V M 0aMicro-irrigation system: An economic analysis  aJaipurbABD Publishersc2009