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  1. By: Gertsch, Willis John, - Mulaik, Stanley.
    Publication info: 1936
    Holding Institution: American Museum of Natural History Library
  2. By: Gertsch, Willis John, - Mulaik, Stanley. - Steckler, Peter. - Wallace, Howard K.
    Publication info: 1936
    Holding Institution: American Museum of Natural History Library
  3. By: Gertsch, Willis John, - Mulaik, Stanley.
    Publication info: 1936
    Holding Institution: American Museum of Natural History Library
  4. By: Gertsch, Willis John, - Mulaik, Dorothea. - Mulaik, Stanley.
    Publication info: 1939
    Holding Institution: American Museum of Natural History Library
  5. By: Gertsch, Willis John, - Grand Canyon Entomological Expedition (1934) - Lutz, Frank Eugene, - Mulaik, Stanley.
    Publication info: 1935
    Holding Institution: American Museum of Natural History Library
  6. By: Gertsch, Willis John, - Mulaik, Stanley.
    Publication info: 1940
    Holding Institution: American Museum of Natural History Library
  7. By: Davis, L. Irby. - Gertsch, Willis John, - Mulaik, Stanley.
    Publication info: 1940
    Holding Institution: American Museum of Natural History Library