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  1. By: Heiden, Richard S.
    Publication info: 1966
    Holding Institution: Smithsonian Institution Archives
    BHL Collections: Smithsonian Field Books collection
  2. By: Heiden, Richard S.
    Publication info: 1966
    Holding Institution: Smithsonian Institution Archives
    BHL Collections: Smithsonian Field Books collection
  3. By: Heiden, Richard S. - Lewis, T. James
    Publication info: 1966
    Holding Institution: Smithsonian Institution Archives
    BHL Collections: BHL Field Notes Project | Smithsonian Field Books collection
  4. By: Heiden, Richard S.
    Publication info: 1966
    Holding Institution: Smithsonian Institution Archives
    BHL Collections: Smithsonian Field Books collection
  5. By: Heiden, Richard S.
    Publication info: 1966
    Holding Institution: Smithsonian Institution Archives
    BHL Collections: Smithsonian Field Books collection
  6. By: Chandler, Richard D. - Fitch, John H. - Heiden, Richard S.
    Publication info: 1966
    Holding Institution: Smithsonian Institution Archives
    BHL Collections: Smithsonian Field Books collection
  7. By: Fitch, John H. - Heiden, Richard S. - Huber, L. N.
    Publication info: 1966
    Holding Institution: Smithsonian Institution Archives
    BHL Collections: Smithsonian Field Books collection
  8. By: Heiden, Richard S. - Huber, L. N. - Smith, Frank
    Publication info: 1966
    Holding Institution: Smithsonian Institution Archives
    BHL Collections: Smithsonian Field Books collection
  9. By: Heiden, Richard S. - Hoff, D. I. - Huber, L. N.
    Publication info: 1966
    Holding Institution: Smithsonian Institution Archives
    BHL Collections: Smithsonian Field Books collection