00395cam a22001577a 450000500170000000800410001701000100005801100100006803500100007808200150008810000330010324500540013626000250019030000100021565000120022520220329141210.0971010s1989            r     00010     d  a64219  a65191  a71462  a631.4bB6800aBoulaine, Jean Louis George. 0aHistoire des pedologues et de la science des sols  aParis :bINRA,c1989  a285 p14aSuelos.