00700nam a2200157Ia 4500008004100000082003800041100012600079245008100205260003800286300001300324490004400337650001900381942000700400952011800407999001700525140224s9999 xx 000 0 und d a631.416.9 1987.1.12/16 (082.2) M7 aSymposium on the Utilization of Secondary and Trace Elements in Agriculture. Geneva, Palais des nations, Jan.12-16, 1987. aThe utilization of secondary and trace elements in agriculture; proceedings/ aDordrechtbMartinus Nijhoffc1987 avi,299p. aDevelopments in Plant and Soil Sciences aTrace elements cBK 00104070aKSDbKSDd2014-02-24l0o631.416.9 1987.1.12/16 (082.2) M7p4968r2014-02-24 00:00:00w2014-02-24yBK c96859d96859