000 00874nam a2200157Ia 4500
008 140208s9999 xx 000 0 und d
020 _a9789024728664
044 _aNetherlands
080 _a631.8 UN4E
100 _aUnited Nations. Economic Commission for Europe
245 _aEfficient use of fertilizers in agriculture : proceedings of the symposium on research into agro - technical methods aiming at increasing the productivity of crops - co efficients for the most efficient use of fertilizer nutrients and means reducing the losser nutrients to the environment under the conditions of intensive agriculture,held at Geneva,Switzerland, 17-21 January 1983.
_cUnited Nations. Economic Commission for Europe
260 _bMartinus Nijhoff Publishers
_aHague
_c1983
300 _avaries p.;
490 _aDevelopments in plant and soil sciences; v.10
942 _2udc
_cGB
999 _c17199
_d17199