00409nam a2200133Ia 4500008004100000082001600041100001700057245005500074260003400129300001500163600003500178600003400213650002800247140224s9999    xx            000 0 und d  a311.2:63 N1  aMandal, R.C.  aAgricultural statistics; techniques and procedures  aBikanerbAgro Botanicalc1991  aviii,200p.  a R.C.Mandal and P.T.N.Nambiar.  aNambiar, P.T.N., joint author  aAgricultural statistics