1. Goal Tar Constituents and Cancer
2. On cancer producing tars and tar fractions;Kennaway EL;J Ind Hyg,1934
3. Comparative activity of some carcinogenic hydrocarbons;Twort SW;Am J Cancer,1939
4. EPA. Dermal bioassay: data gathering for appropriate species and strains. EPA contract no. 68-02-4296. Washington DC:U.S. Environmental Protection Agency 1988.
5. Carcinogenic potential of petroleum hydrocarbons. A critical review of the literature;Bingham E;J Environ Pathol Toxicol,1980