International Seminar on Assessment of Carcinogenic Risk from Occupational Exposure to Inorganic Substances & Duffus, J. H. (1997). Carcinogenicity of inorganic substances: Risks from occupational exposure. Royal Society of Chemistry.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Seminar on Assessment of Carcinogenic Risk from Occupational Exposure to Inorganic Substances και John H. Duffus. Carcinogenicity of Inorganic Substances: Risks from Occupational Exposure. Cambridge: Royal Society of Chemistry, 1997.
Παραπομπή σε μορφή MLA (9th εκδ.)International Seminar on Assessment of Carcinogenic Risk from Occupational Exposure to Inorganic Substances και John H. Duffus. Carcinogenicity of Inorganic Substances: Risks from Occupational Exposure. Royal Society of Chemistry, 1997.