00309    a2200121   4500082001500000100002300015245003300038260005000071300002100121650001400142650001600156650001500172  a338.1bSIN  aSingh, Vinai Kumar  aEconomics of farm production  aNew DelhibCriterion Publicationsc1989g1989  a[ii],262p.c22cm  aEconomics  aAgriculture  aProduction