Journal issue
	International Commission on Zoological Nomenclature, 
		1910. Opinions rendered by the International Commission on Zoological Nomenclature: Opinions 1 to 25. Smithson. Publ. (no. 1938), Jul 1910: 1-61.
	 [Reprint: ICZN, 1958. Ops. Decls. Int. Comm. Zool. Nomencl. 1 (B): 1-61] ≡
Articles
	- 
		International Commission on Zoological Nomenclature, 1910.
			Opinion 21. Shall the Genera of Klein, 1744, Reprinted by Walbaum, 1792, be Accepted?: 51-52.