Reference
- Hosey , A. D. and Mendenhall , A. C. Jr. 1959 . The En-virec—An Instrument for Continuous Recordings of Environmental Air Wet Bulb and Globe Temperatures, and Air Velocity. . Amer. Ind. Hyg. Assoc. J. , 20 : 121
- Wallach , A. and McQuary , W. A. 1948 . Sampling and Determination of Chlorine in Air. . Amer. Ind. Hyg. Quart. , 9 : 63