1. Particle Shape Factors;Cartwright;Ann. occup. Hyg.,1962
2. Non-Viable Particles in the Air, Chap. 3;Corn,1968
3. The Irritant Potential of Pollutants in the Atmosphere;Corn;Archs envir. Hlth.,1967
4. Atmospheric Particulates: Specific Surfaces and Densities;Corn;Science,1968
5. Size, Area, Volume and Weight of Dust Particles;Davies;Am. occup. Hyg.,1961