00557nam a2200169Ia 4500008004100000082001700041100002600058245004400084260003400128300001300162490003900175600003000214650002200244942000700266952009700273999001700370140224s9999    xx            000 0 und d  a581.138.1 M7  aElkan, Gerald H., ed.  aSymbiotic nitrogen fixation technology/  aNew YorkbMarcel Dekkerc1987  aix,440p.  aBooks in Soils and the Environment  aEdited by Gerald H. Elkan  aNitrogen fixation  cBK  00104070aKSDbKSDd2014-02-24l0o581.138.1 M7p4719r2014-02-24 00:00:00w2014-02-24yBK  c96284d96284