00437nam a2200169 a 450000100080000000500110000800800410001902000180006010000150007824500390009325000110013226000300014330000110017349000380018465000210022270000240024310330852017-10-12       1978    bl uuuu     u00u1 u    #d  a0-444-41435-51 aBOLT, G.H.  aSoil chemistryba. basic elements.  a2. ed.  aAmsterdam: Elsevierc1978  a281 p.  aDevelopments in Soil Science ; 5A  aQUIMICA DE SUELO1 aBRUGGENWERT, M.G.M.