00495nam a2200109Ia 4500008004100000082003100041245009300072260002600165300001000191600013600201650004800337130903s9999    xx            000 0 und d  a338:63.002(540)(082.3)  L0  aMethodology of studying Productivity in Agriculture; Contributed papers and proceedings.  aNew DelhibIARSc1970  a408p.  aSeminar on Methodology of Studying Productivity in Agriculture. New Delhi, Institute of Agricultural Research Statistics, Aug.1970.  aProduction economics,Agricultural Economics