00323nam a2200109Ia 4500008004100000082002700041100002500068245005300093260003800146300001200184650001700196140113s9999    xx            000 0 und d  a631.459:631.61(213) L6  a"Sanchez, Pedro, A."  aProperties and Management of Soils in the Topics  b"USA : Library of Congress, 1976"  aX; 618p  aSoil science