00501nam a2200145Ia 4500008004100000041000800041084001200049100002200061245007700083260004200160653001600202653001700218999001900235952010100254160808s1976    xx            000 0 eng d  aeng  aJ:12CC  aSanchez, Pedro A.  aProperties and management of Soils in the Tropics /cby Pedro A. Sanchez  aNew York :bJohn Wiley & Sons,c1976.  aAgriculture  aSoil Science  c166591d166591  001040708ENGaLIBbLIBd2016-08-11l1oJ:1 L6p156439r2017-07-10s2017-05-09w2016-08-11yBK