John C (1932) On the development of Cephalodiscus. Discovery Reports 6: 191-204.[details]
Swalla, B.J.; van der Land, J. (2024). Hemichordata World Database. Cephalodiscus kempi John, 1932. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=266754 on 2024-11-21