1. Baumann, P.C. (1989) PAH, metabolites, and neoplasia in feral fish populations. In Varanasi, U. ed. Metabolism of polycyclic aromatic hydrocarbons in the aquatic environment, pp. 269?90. Boca Raton, FL: CRC Press.
2. Baumann, P.C. and Harshbarger, J.C. (1985) Frequencies of liver neoplasia in a feral fish population and associated carcinogens. Marine Environ. Res. 17, 324?7.
3. Baumann, P.C. and Mac, M.J. (1988) Polynuclear aromatic hydrocarbons and tumors in brown bullheads from the Black and Cuyahoga rivers-cause and effect? In Nimi, A.J. and Solomon, K.R. eds. Proceedings of the 14th Annual Aquatic Toxicity Workshop, 2?4 November, Toronto, Ontario: Canadian Technician Report of Fisheries and Aquatic Sciences No. 1607.
4. Baumann, P.C., Smith, W.D. and Ribick, M. (1982) Hepatic tumor rates and polynuclear aromatic hydrocarbon level in two populations of brown bullhead (Ictalurus nebulosus). In Cooke, M.W., Dennis, A.J. and Fisher, G.L. eds. Polynuclear aromatic hydrocarbons: Sixth International Symposium of Physical and Biological Chemistry, pp. 93?102. Columbus, OH: Battelle Press.
5. Baumann, P.C., Harshbarger, J.C. and Hartman, K.J. (1990) Relationship between liver tumors and age in brown bullhead populations from two Lake Erie tributaries. Sci. Total Environ. 94, 71?87.