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  1. 541
    Crop residue management systems /

    Crop residue management systems /

    Published 1978
    Book
  2. 542
    Reclamation of drastically disturbed lands /

    Reclamation of drastically disturbed lands /

    Published 1978
    Book
  3. 543
    Drainage for agriculture /

    Drainage for agriculture /

    Published 1974
    Book
  4. 544
    Crop tolerance to suboptimal land conditions /

    Crop tolerance to suboptimal land conditions /

    Published 1978
    Book
  5. 545
    Price theory and applications /

    Price theory and applications / by Hirshleifer, Jack

    Published 1976
    Book
  6. 546
    Biological mechanisms of aging /

    Biological mechanisms of aging / by Curtis, Howard J.

    Published 1966
    Book
  7. 547
    Tissue culture and plant science 1974 /

    Tissue culture and plant science 1974 /

    Published 1976
    Book
  8. 548
    Mode of action of herbicides /

    Mode of action of herbicides / by Ashton, Floyd M.

    Published 1981
    Book
  9. 549
    Drainage engineering /

    Drainage engineering / by Luthin, James N.

    Published 1978
    Book
  10. 550
    Food, energy and society /

    Food, energy and society / by Pimentel, David

    Published 1979
    Book
  11. 551
    Taxonomy of fungi /

    Taxonomy of fungi /

    Published 1978
    Book
  12. 552
    Insecticide and fungicide handbook : for crop protection /

    Insecticide and fungicide handbook : for crop protection /

    Published 1972
    Book
  13. 553
    Biochemistry of membrane transport /

    Biochemistry of membrane transport /

    Published 1977
    Book
  14. 554
    Utilisation of manure by land spreading /

    Utilisation of manure by land spreading /

    Published 1977
    Book
  15. 555
    Progress in botany, 39 : morphology, physiology, genetics, taxonomy, geobotany = Fortschritte der botanik, 39 : morphologie, physiologie, genetik, systematik, geobotanik /

    Progress in botany, 39 : morphology, physiology, genetics, taxonomy, geobotany = Fortschritte der botanik, 39 : morphologie, physiologie, genetik, systematik, geobotanik /

    Published 1977
    Book
  16. 556
    Chemistry and agriculture /

    Chemistry and agriculture /

    Published 1979
    Book
  17. 557
    General biological aspects of salivary secretion in rumiants /

    General biological aspects of salivary secretion in rumiants /

    Article
  18. 558
    Ethology of free-ranging domestic animals /

    Ethology of free-ranging domestic animals / by Arnold, G. W.

    Published 1978
    Book
  19. 559
    Animal cell culture and virology /

    Animal cell culture and virology /

    Published 1974
    Book
  20. 560
    Crop resources /

    Crop resources /

    Published 1977
    Book

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