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  1. By: Gertsch, Willis John, - Mulaik, Stanley
    Publication info: New York City, The American Museum of Natural History, [1936]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.54,4(76.4)  Arachnida  Classification  Florida  Southwestern States  Spiders  Texas, South
  2. By: Gertsch, Willis John, - Davis, L. Irby.
    Publication info: New York City, The American Museum of Natural History, [1936]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.54,4(76.4)  Arachnida  Classification  Spiders  Texas, South
  3. By: Gertsch, Willis John, - Mulaik, Stanley
    Publication info: New York City, The American Museum of Natural History, [1936]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.54,4(76.4)  Arachnida  Classification  Spiders  Texas  Texas, South