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ICZN. (1956). Opinion 417. Rejection for nomenclatorial purposes of volume 3 (Zoologie) of the work by Lorenz Oken entitled Okens Lehrbuch der Naturgeschichte published in 1815-1816. Opinions and declarations rendered by the International Commission on Zoological Nomenclature. 14: 1-42.
ICZN. (1956). Opinion 417. Rejection for nomenclatorial purposes of volume 3 (Zoologie) of the work by Lorenz Oken entitled Okens Lehrbuch der Naturgeschichte published in 1815-1816. Opinions and declarations rendered by the International Commission on Zoological Nomenclature. 14: 1-42.
