000 00282nam a2200121 4500
082 _a631.4 DES
_b007551
100 _aDE Silva,Shanthi
_9359
245 _aSoil Nutrients for Plants
260 _bOpen University of Sri Lanka
_c1991
300 _a57
650 _aSoil
_9360
942 _cBK
999 _c5046
_d5046