Gustav L. Mayr
1830–1908
German entomologist. (NUC.) [Vol. 7]
Source
NUC
Bibliography
NUC: The national union catalog. Pre-1956 imprints. 685 vols. and supplement (69 vols.). London and Chicago: Mansell. 1968–81.
letter
Darwin Correspondence Project
darwin@lib.cam.ac.uk
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