00407nam a2200133Ia 4500008004100000082001700041100002200058245004900080250001200129260004000141300001400181600004300195650003500238140224s9999    xx            000 0 und d  a631.4(02) L7  aPalmer, Robert G.  aIntroductory soil science, laboratory manual  a2nd ed.  aAmesbIowa State Universitycc 1967  avii,136p.  a Robert G.Palmer and Frederick R.Troch  aSoil Science-Laboratory manual