IARC (1984), Polynuclear aromatic hydrocarbons, Part 2, carbon blacks, mineral oils (lubricant base oils and derived products) and some nitroarenes.
IARC (1984), Policiklični aromatski ogljikovodiki, Del 2, črni ogljik, mineralna olja (mazalna olja in pridobljeni proizvodi) ter nekateri nitroareni.