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  1. 1
    by Hartgen, David T.
    Published 1975
    Book
  2. 2
    by Hamburg, John R.
    Published 1964
    Book
  3. 3
    by Tannir, Anis A.
    Published 1977
    Book
  4. 4
  5. 5
    Published 1971
    Book
  6. 6
    by Hartgen, David T.
    Published 1983
    Government Document Book
  7. 7
    by Smith, Steven A.
    Published 1992
    Government Document Book
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