Ryland, J.S. (2017). Bryozoa, in: Hayward, P.J. et al. (Ed.) Handbook of the marine fauna of North-West Europe. pp. 603-637
In: Hayward, P.J.; Ryland, J.S. (Ed.) (2017). Handbook of the marine fauna of North-West Europe. Second edition. Oxford University Press: Oxford. ISBN 978-0-19-954944-3. xiii, 785 pp., meer
