000 00314nam a2200109Ia 4500
008 180612s9999||||xx |||||||||||||| ||und||
041 _aen
100 _aDE SILVA M.A.T
245 0 _aMineral nutrition of plants science education series No.2
260 _bColombo, National science cou
_cncil 1980
942 _cPR
999 _c38990
_d38990