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  1. 61
  2. 62
  3. 63
    Published 1985
    Government Document Conference Proceeding Book
  4. 64
    Published 1982
    Book
  5. 65
    by Hudson, Vinson J.
    Published 1990
    Book
  6. 66
  7. 67
  8. 68
    Published 1980
    Conference Proceeding Book
  9. 69
    by Kilgour, Frederick G.
    Published 1984
    Book
  10. 70
    Journal
  11. 71
  12. 72
  13. 73
  14. 74
  15. 75
    Published 1984
    Serial
  16. 76
    Published 2011
    Book
  17. 77
  18. 78
    by Wiggins, Gary, 1943-
    Published 1991
    Book
  19. 79
  20. 80