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  1. Bibliography of North American geology for 1909 with subject index,
    By: Nickles, John M. (John Milton),
    Publication info: Washington,Govt. Print. Off.,1910.
    Holding Institution: University Library, University of Illinois Urbana Champaign
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  2. A synopsis of American fossil Bryozoa, including bibliography and synonymy /
    By: Nickles, John M. (John Milton), - Bassler, Ray S. (Ray Smith),
    Publication info: Washington,Govt. Print. Off.,1900.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
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  3. The upper Ordovician rocks of Kentucky and their bryozoa.
    By: Nickles, John M. (John Milton),
    Publication info: Louisville [Ky.] :Printed by the Geo. G. Fetter company,1905.
    Holding Institution: University of California Libraries (archive.org)
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