00398nam a2200157Ia 4500008004100000082001700041100001400058245003400072260004100106300000800147650001400155650002000169653002200189653001400211653001500225170901s1977    xx            000 0 und d  a333.91bK98E  aKumar, P. 0aEconomics of Water Management  aNew DelhibHeritage Publishersc1977  a117  aEconomics  aSocial sciences  aAgricultural land  aEconomics  aIrrigation