Literature
Authors(s) Hammond P.S. and Prime J.H.
Year 1990
Title The Diet of British Grey Seals (Halichoerus grypus). In: Bowen W.D. (ed.) Population biology of Sealworm (Pseudoterranova decipiens) in relation to its intermediate and seal hosts. Can. Bull. Fish. Aquat. Sci. 222: 243-254