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  1. By: Gertsch, Willis John, - Ivie, Wilton
    Publication info: New York City, The American Museum of Natural History, [1936]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.54,4(7)  Arachnida  Classification  North America  Spiders  West (U.S.)
  2. By: Gertsch, Willis John,
    Publication info: New York City, The American Museum of Natural History, [1934]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.54,4(7)  Arachnida  Canada  Classification  Spiders  United States
  3. By: Gertsch, Willis John,
    Publication info: New York City, The American Museum of Natural History, [1933]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.54,4(7)  Arachnida  Classification  North America  Spiders  Thomisidae  wolf spiders