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© The New York Public Library, 2025
The New York Public Library is a 501(c)(3) | EIN 13-1887440
Die Pflanze als Erfinder, von R. H. Francé, mit zahlreichen Abbildungen.
General Research Division, The New York Public Library. "Eine biotechnische "Erfindung" und ihr Vorbild" The New York Public Library Digital Collections. 1920. https://digitalcollections.nypl.org/items/68a25238-99c0-49ea-e040-e00a18060dae
General Research Division, The New York Public Library. "Eine biotechnische "Erfindung" und ihr Vorbild" New York Public Library Digital Collections. Accessed January 22, 2025. https://digitalcollections.nypl.org/items/68a25238-99c0-49ea-e040-e00a18060dae
General Research Division, The New York Public Library. (1920). Eine biotechnische "Erfindung" und ihr Vorbild Retrieved from https://digitalcollections.nypl.org/items/68a25238-99c0-49ea-e040-e00a18060dae
<ref name=NYPL>{{cite web | url=https://digitalcollections.nypl.org/items/68a25238-99c0-49ea-e040-e00a18060dae | title=
(still image)
Eine biotechnische "Erfindung" und ihr Vorbild, (1920)
|author=Digital Collections, The New York Public Library |accessdate=January 22, 2025 |publisher=The New York Public Library, Astor, Lenox, and Tilden Foundations}}</ref>