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  1. By: Hagen, Hermann August,
    Publication info: LeipzigW. Engelmann1862-63
    Holding Institution: University of Toronto - Gerstein Science Information Centre
  2. By: Hagen, Hermann August,
    Publication info: Leipzig :W. Engelmann,1862-63.
    Holding Institution: Smithsonian Libraries
  3. By: Hagen, Hermann August,
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
  4. By: Hagen, Hermann August,
    Publication info: Cambridge[University Press: Welch, Bigelow, & Co.]1870.
    Holding Institution: Smithsonian Libraries
  5. By: Hagen, Hermann August,
    Publication info: Cambridge :[University Press: Welch, Bigelow & co.] :1870.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  6. By: Sélys-Longchamps, Michel-Edmond, baron de, - Hagen, Hermann August,
    Publication info: Bruxelles et Leipzig,C. Muquardt,1858.
    Holding Institution: California Academy of Sciences
  7. By: Sélys-Longchamps, Michel-Edmond, baron de, - Hagen, Hermann August,
    Publication info: Bruxelles et Leipzig,C. Muquardt,1854.
    Holding Institution: California Academy of Sciences
  8. By: Hagen, Hermann August,
    Publication info: Cambridge [Mass.] :University Press,1876.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  9. By: Hagen, Hermann August,
    Publication info: Regimontii Prussorum :impressit E.J. Dalkowski,[1840]
    Holding Institution: University Library, University of Illinois Urbana Champaign
  10. By: Hagen, Hermann August,
    Publication info: Washington :Smithsonian Institution,1861.
    Holding Institution: Canadiana.org (archive.org)
  11. By: Hagen, Hermann August, - Uhler, Philip R. (Philip Reese),
    Publication info: Washington,Smithsonian institution,1861.
    Holding Institution: University of California Libraries (archive.org)
  12. By: Hagen, Hermann August, - Uhler, Philip R. (Philip Reese),
    Publication info: Washington,Smithsonian institution,1861.
    Holding Institution: MBLWHOI Library
  1. By: Hagen, Hermann August,
    Type: Article
    In: Bulletin of the Museum of Comparative Zoology at Harvard College.
    Volume: 8
    Issue: 14
    Date: 1881
    Page Range: 275--284
    Publication info: Cambridge, Mass. :The Museum,1863-
  2. By: Hagen, Hermann August,
    Type: Article
    In: Entomologische Zeitung.
    Volume: 6
    Issue: 5
    Date: 1845
    Page Range: 155-156
    Publication info: [Stettin :Entomologischer Verein zu Stettin,1840-1911].