00483nam a2200193Ia 4500001000700000003000500007008004100012010001100053040000900064082001600073100002400089245008100113260003000194300002200224440000500246500000500251503001100256650002200267Z_3075CHAP220113s1976    xx            000 0 und d  a166165  cCHAP  a631.4913 S3  aSánchez, Pedro A.  aProperties and management of soils in the tropics  /cby  Pedro A. Sánchez  aNew York  :bWiley,c1976  a618 p. : gráfs.  a  a  a118138  aSuelos tropicales