000 00614nam a2200217Ia 4500
008 170901s1973 xx 000 0 und d
020 _a9022005526
082 _a547.633
_bI-5P
100 _aInternational Meeting on Humic Sustances Their Structure And Function in the Biosphere, NieuwersLuis, 1972
245 0 _aProceedings
260 _aWageningen
_bPUDOC
_c1973
300 _a368
650 _aChemistry and allied sciences
650 _aPure Sciences
653 _aHumic acid
653 _aHumus
653 _aSoil biology
700 _aGolterman, H. L.
700 _aPovoledo, D.
942 _2ddc
_cBK
999 _c5772
_d5772