1. Abdalla R. R. (2000) Biological and taxonomical studies on octopuses (Octopoda: Cephalopoda) from the Egyptian Mediterranean watersPhD thesis, Faculty of Science, Alexandria University 305 pp
2. Anon (1978) The study of the water pollution along the coast of Alexandria as a consequence of the sewage discharge Technical Report Alex. Univ. & Acad. Sci. Res. & Tech. Egypt 116 pp
3. Boucaud-Camou E. Boismery J. (1991) The migration of the cuttlefish (Sepia officinalisL.) in the English Channel In: Boucaud-Camou, E. (Ed.), La Seiche Univerisité de Caen 179 189
4. Bryan G. W. (1984) Pollution due to heavy metals and compounds In: Rinne, O. (Ed.), Marine ecology Wiley – Inter Science Chichester 5 Part 3 pp. 1289–1431