Phylum Chordata: Cephalochordata
McCarthy, D.A.; Young, C.M. (2002). Phylum Chordata: Cephalochordata, in: Young, C.M. et al. (Ed.) Atlas of marine invertebrate larvae. pp. 595-605
In: Young, C.M.; Sewell, M.A.; Rice, M.E. (Ed.) (2002). Atlas of marine invertebrate larvae. Academic Press: San Diego. ISBN 0-12-773141-5. XIV, 626 pp., meer
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