1. Bonner, W. N. (1982) Seals and Man: A Study of Impacts. University of Washington Press, Seattle
2. Bonner, W. N. and McCann, T. S. (1982) Neck collars on fur seals, Arctocephalus gazella, at south Georgia. British Antarctic Survey Bulletin 57, 73–77
3. Barlow, J., Baird, R. W., Heyning, J. E., Wynne, K., Manville II, A. M., Lowry, L. F., Hanan, D., Sease, J. and Burkanov, V. N. (1994) Review of cetacean and pinniped mortality in coastal fisheries along the west coast of the USA and Canada and the east coast of the Russian Federation. Report of the International Whaling Commission. Special Issue 15, 405–426
4. Day, R. H., Shaw, D. J. and Ignell, S. E. (1990) The quantitative distribution and characteristics of marine debris in the North Pacific Ocean, 1984–1988. In Proceedings of the Second International Conference on Marine Debris, eds. R. S. Shomura and M. L. Godfrey, pp. 182–211. NOAA-TM-NMFS-SWFSC-154, 2–7 April 1989, Honolulu,
5. DeSante, D. F. and Ainley, D. G. (1980) The avifauna of the South Farallon Islands, California. Studies in Avian Biology 4, 1–122