http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Carcinogens and anticarcinogens in the human diet
a comparison of naturally occurring and synthetic substances
Committee on Comparative Toxicity of Naturally Occurring Carcinogens
committee on Comparative Toxicity of Naturally Occuring Carcinogens, Commission of Life Sciences,National Research Council