000 00296nam a2200109Ia 4500
001 MPKV098832
008 120911s9999 xx 000 0 und d
245 _aMicronutrients in tropical food crop production
_cVlek,P.L.G.;
260 _aMijhoft
_bMartinus
_c1985
300 _b260 pp
365 _b1056/-
999 _c62416
_d62416