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  1. 41
    Book
  2. 42
    Book
  3. 43
    Book
  4. 44
    by Gachkel, Serge
    Published 1946
    Book
  5. 45
  6. 46
  7. 47
    Published 1980
    Conference Proceeding Book
  8. 48
    Published 1981
    Book
  9. 49
    Published 1980
    Book
  10. 50
  11. 51
    Microform Serial
  12. 52
    Microform Book
  13. 53
    Published 1978
    Book
  14. 54
    by Miley, Arthur L.
    Published 1969
    Book
  15. 55
    by Pfiffner, James P.
    Published 1979
    Book
  16. 56
    Government Document Journal
  17. 57
    Government Document Journal
  18. 58
  19. 59
    Serial
  20. 60
    Published 1975
    Book
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