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  1. 141
    Published 1983
    Subjects
    Book
  2. 142
    Published 1977
    Subjects
    Conference Proceeding Book
  3. 143
    by Persson, Jörgen
    Published 2003
    Subjects ...Nitrogen Fixation....
    Thesis Book
  4. 144
    by Nordin, Annika
    Published 1998
    Subjects ...Plants Effect of nitrogen on....
    Thesis Book
  5. 145
    Subjects ...Nitrogen Metabolism....
    Book
  6. 146
  7. 147
    Published 1977
    Subjects ...Nitrogen Fixation Congresses....
    Book
  8. 148
    by Zimmo, Omar, 1958-
    Published 2003
    Subjects ...Sewage Purification Nitrogen removal....
    Thesis Book
  9. 149
    Published 1994
    Subjects
    Book
  10. 150
    Published 2000
    Subjects
    Book
  11. 151
  12. 152
  13. 153
    by Alriksson, Börje
    Published 1997
    Subjects
    Thesis Book
  14. 154
    Published 2000
    Subjects ...Sewage Purification Nitrogen removal....
    Book
  15. 155
    by Swift, John
    Published 1981
    Subjects ...Nitrogen-fixing trees Papua New Guinea....
    Book
  16. 156
    by Aronsson, Pär
    Published 2000
    Subjects
    Thesis Book
  17. 157
  18. 158
  19. 159
  20. 160
    Published 1985
    Subjects
    Book