00398pab a2200145 454500008004000000100001700040245006800057260000900125300001300134362000800147650002400155650001600179700002100195773003600216180718b1996   xxu||||| |||| 00| 0 eng d  aArya, S.R.S.  aAgricultural productivity trends and research agenda for region  c1996  ap.793-99  aMar  aAgriculture - India  aAgriculture  aMaheshwari, R.C.  aAgricultural Situation in India