1. [Amphioxus and ascidian] Publication: Bethesda, MD : U.S. National Library of Medicine, National Institutes of Health, Health & Human Services, 2009 Subject(s): UrochordataChordataBooks
2. [Schwerdtfisch] Publication: Getruckt zů Zürych : bey Christoffel Froschower, im Jar als man zalt MDLXIII [1563] Subject(s): ChordataNatural History
