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  1. 1
    by Kude︠i︡arov, V. N.
    Published 1989
    Moskva : "Nauka", 1989.
    214, [2] p. ; 24 cm.
    Subjects: “...Soils Nitrogen content....”
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  2. 2
    by Rothen, Alexandre
    Published 1925
    Genève, Jent, S.A., 1925.
    28 p. 8vo.
    Subjects: “...Nitrogen oxides....”
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  3. 3
    by Dijk, Siebren Jan van de
    Published 1981
    Groningen : Rijksuniversiteit te Groningen, [1981?]
    138 p. : ill. ; 25 cm.
    Subjects: “...Plants, Effect of nitrogen on....”
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  4. 4
    London, E. Arnold & co., 1934.
    viii, 280 p. illus., VI pl., fold. diagr. 22 cm.
    Subjects: “...Nitrogen....”
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  5. 5
    by Kirchmann, H. (Holger)
    Published 1985
    Stockholm : Scandinavian Association of Agricultural Scientists and the Royal Swedish Academy of Agriculture and Forestry, 1985.
    77 p. : ill. ; 25 cm.
    Subjects: “...Nitrogen fertilizers....”
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  6. 6
    Moskva : Nauka, 1969.
    158 p. : ill., port. ; 20 cm.
    Subjects: “...Nitrogen Fixation....”
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  7. 7
    Moskva : Izd-vo "Nauka," 1968.
    530, [2] p. : ill. ; 22 cm.
    Subjects: “...Nitrogen-fixing microorganisms....”
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  8. 8
    Published 1967
    Moskva : Izd-vo "Nauka", 1967.
    366 p. : ill. ; 27 cm.
    Subjects: “...Nitrogen....”
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  9. 9
    Published 1973
    Erevan : Izd-vo AN Arm︠i︡anakoĭ SSR, 1973.
    151, [14] p. : ill. ; 23 cm.
    Subjects: “...Nitrogen-fixing microorganisms....”
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  10. 10
    Published 1981
    Erevan : Izd-vo AN Arm︠i︡anakoĭ SSR, 1981.
    181 p. : ill. ; 23 cm.
    Subjects: “...Nitrogen-fixing microorganisms....”
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  11. 11
    Published 1978
    [Bangladesh] : Organising Committee, National Seminar on Nitrogen in Crop Production, [1978?]
    3, 2, 171, ii p., [1] leaf of plates : ill. ; 25 cm.
    Subjects: “...Nitrogen fertilizers Congresses....”
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  12. 12
    by Roponen, Ilma
    Published 1970
    [Helsinki, 1970]
    18 p. 24 cm.
    Subjects: “...Nitrogen-fixing plants....”
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  13. 13
    Published 1983
    Moskva : Izd-vo "Nauka", 1983.
    263 p. : ill., ports ; 22 cm.
    Subjects: “...Nitrogen Metabolism....”
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  14. 14
    by Lindberg, Torbjörn
    Published 1985
    Uppsala : Swedish University of Agricultural Sciences, Department of Microbiology, 1985.
    1 v. (various pagings) : ill. ; 24 cm.
    Subjects: “...Nitrogen-fixing microorganisms....”
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  15. 15
    2001.
    185 p.
    Subjects: “...nitrogen transformation....”
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  16. 16
    Moskva : Nauka, 1992.
    205, [1] p. : ill. ; 22 cm.
    Subjects: “...Nitrogen fertilizers....”
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  17. 17
    Moskva : "Nauka", 1994.
    167, [1] p. : ill. ; 22 cm.
    Subjects: “...Nitrogen Fixation....”
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  18. 18
    Published 1989
    Moskva : "Nauka", 1989.
    206 p. : ill. ; 22 cm.
    Subjects: “...Nitrogen in agriculture Soviet Union....”
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  19. 19
    Moskva : "Nauka", 1987.
    485 p. : ill., ports ; 22 cm.
    Subjects: “...Nitrogen Fixation....”
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  20. 20
    Zürich, Juris-Verlag, 1962.
    34 p. 22 cm.
    Subjects: “...nitrogen....”
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