00325nam a2200109 a 450000500170000008200160001710000230003324500500005626000260010630000250013249000580015720251202164322.0  a338.13bBAT  aBatra, Madan Mohan  aAgriculture productionbprices and technology  aChennaibAlliedc1978  axiv, 170p.c24cm. HB  aDelhi school of economics monograph in economics No.4