00391nam a2200133Ia 4500008004100000082001800041100001600059245004100075260003800116300000800154650003800162650003400200653002300234170901s1981    xx            000 0 und d  a657.863bJ20C  aJain, V. K. 0aCost Benefit Analysis in Agriculture  aBhopalbProgress Publishersc1981  a223  aManagement and Auxiliary services  aTechnology (Applied sciences)  aCost effectiveness