1. I. Crecelius E. A. Chemical changes in arsenic following ingestion by men. Presented at Fifteenth Annual Harford Life Sciences Symposium. Richland Washington (Sept. 29-Oct. 1 1975).
2. Methylated Forms of Arsenic in the Environment
3. Colorimetric determination of arsenic;Vasak V.;Chem. Listy,1952
4. Guide for Respirable Mass Sampling
5. Intersociety Committee. Methods of Air Sampling and Analysis. American Public Health Association Washington D. C. 1972.