000 00262nam a2200109 4500
082 _a668.6 DES
_b007559
100 _aDe silva,C.S.
_9363
245 _aFertilizers and Plant Propagation
260 _bOpen University of Sri Lanka
_c1991
300 _a123
942 _cBK
999 _c5055
_d5055