National Cancer Institute monograph. 9. Symposium, analysis of carcinogenic air pollutants, sponsored by Laboratory of Engineering and Physical Sciences of Division of Air Pollution, Department of Health, Education, and Welfare, Public Health Service, Robert A. Taft Sanitary Engineering Center, held Aug. 29-31, 1961, Cincinnati, Ohio [with bibliographies]; edited by Eugene Sawicki and Kenneth Cassel, jr.

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