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  1. By: Pfeiffer, Richard,
    Publication info: Berlin, Hirschwald, 1892
    Holding Institution: MBLWHOI Library
  2. By: Pfeiffer, Richard, - Royal College of Physicians of Edinburgh.
    Publication info: Berlin, A. Hirschwald, 1892
    Holding Institution: Royal College of Physicians in Edinburgh
  3. By: Friedberger, Ernst, - Bail, Oskar - Pfeiffer, Richard,
    Publication info: Jena, G. Fischer, 1919
    Holding Institution: University of Toronto - Gerstein Science Information Centre
  4. By: Pfeiffer, Richard, - Fraenkel, Carl, - Royal College of Physicians of Edinburgh.
    Edition: 2. Aufl.
    Publication info: Berlin, A. Hirschwald, 1895
    Holding Institution: Royal College of Physicians in Edinburgh
  5. By: Pfeiffer, Richard, - Fraenkel, Carl, - Royal College of Physicians of Edinburgh.
    Publication info: Berlin, A. Hirschwald, 1892
    Holding Institution: Royal College of Physicians in Edinburgh
  1. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 96
    Date: 1984
    Page Range: 68--68
    Publication Info: [London s.n
  2. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 92
    Date: 1980
    Page Range: 85--86
    Publication Info: [London s.n
  3. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 102
    Date: 1990
    Page Range: 144--145
    Publication Info: [London s.n
  4. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 92
    Date: 1980
    Page Range: 195--195
    Publication Info: [London s.n
  5. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 102
    Date: 1990
    Page Range: 46--46
    Publication Info: [London s.n
  6. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 94
    Date: 1982
    Page Range: 206--206
    Publication Info: [London s.n
  7. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 78
    Date: 1966
    Page Range: 11--13
    Publication Info: [London s.n
  8. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 103
    Date: 1991
    Page Range: 165--166
    Publication Info: [London s.n
  9. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 83
    Date: 1971
    Page Range: 25--25
    Publication Info: [London s.n
  10. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 78
    Date: 1966
    Page Range: 283--285
    Publication Info: [London s.n
  11. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 92
    Date: 1981
    Page Range: 227--227
    Publication Info: [London s.n
  12. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 78
    Date: 1966
    Page Range: 13--13
    Publication Info: [London s.n
  13. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 87
    Date: 1975
    Page Range: 21--22
    Publication Info: [London s.n
  14. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 89
    Date: 1977
    Page Range: 152--153
    Publication Info: [London s.n
  15. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 93
    Date: 1981
    Page Range: 81--82
    Publication Info: [London s.n
  16. By: Pfeiffer, Richard,
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 88
    Date: 1976
    Page Range: 266--266
    Publication Info: [London s.n