00360nam a2200121Ia 4500008004100000082002500041100003400066245002800100260004900128300000900177600001900186650003300205130903s9999    xx            000 0 und d  aPH 631.82:661.8   P2  a H.L.S.Tandon and D.L.Messick  aPractical sulphur guide  aWashington D.C.bThe Sulphur Institutec2002  a19p.  aTandon, H.L.S.  aGuide Book,Sulphur Nutrition