00383nam a2200133Ia 4500008004100000082001700041100002400058245005400082260003000136300001000166600002700176600002700203650001900230140113s9999    xx            000 0 und d  a631.427.3 M2  a" Davidescu, David"  aEvolution of fertility by plant and soil analysis  b"Editura Academiei, 1982"  a560p.  a" Davidescu, Velicica"  a" Davidescu, Velicica"  aSoil fertility