00424nam a2200121Ia 4500008004100000082003400041100007100075245004100146260001700187300001000204600001600214650007200230140117s9999    xx            000 0 und d  a"374.14:63 ""1978"" (026) L8"  aKerala Agricultural University. Directorate of Extension Education  aPackage of practices recommendations  bK.A.U.c1978  a144p.  aVellanikara  aAgricultural Extension Work-KeralaCrops-Planting Study and teaching