00301nam a2200109Ia 4500008004100000082002800041100001800069245002200087260004000109300001000149650003200159140224s9999    xx            000 0 und d  aPH 551.588.3(100):91 L6  aBridges, E.M.  aWorld Soils, E.M.  aLondonbCambridge Universitycc1970  a889p.  aSoil geography,Soil mapping