Reference
- Sheehan , J. C. March 1962 . March , Pittsburgh, Pennsylvania : Mine Safety Appliances Company . Personal communication.
- Revoir , W. H. April 1962 . April , Southbridge, Massachusetts : American Optical Company . Personal communication
- Fawcett , H. H. 1961 . Speech Transmission through Respiratory Protective Devices. . Amer. Ind. Hyg. Ass. J. , 22 : 170
- Siodmak , G. April 1962 . April , Van Nuys, California : Jamieson Laboratories, Inc. . Personal communication
- Glidden , G. M. March 1962 . March , South Haven, Michigan : Acme Protection Equipment Company . Personal communication
- Jefferies , H. April 1962 . SurvivAir Division , April , Santa Ana, California : U. S. Divers Company. . Personal communication
- Miller , A. April 1962 . April , Lancaster, New York : Scott Aviation Corp. . Personal communication
- Phillips , W. April 1962 . April , New Philadelphia, Ohio : Snyder Manufacturing Company, Inc. . Personal communication
- Constantine , M. T. Evaluation of Safety Clothing Material. , Rocketdyne Division of North American Aviation, Inc. . A report as part of Air Force Contract 04(611)-5963
- Weiss , H. March 1962 . March , Brooklyn, New York : Pulmosan Safety Equipment Corp. . Personal communication
- Wiswesser , W. J. September 1961 . Willson Products Division , September , Pennsylvania : Ray-O-Vac Company, Reading . Personal communication
- Gustafson , P. and Smith , S. H. Jr. December 1960 . Removal of Organic Contaminants from Air by Type 13X Molecular Sieve. , December , U. S. Naval Research Laboratory . Report NRL-5560
- Rowe , V. K. December 1961 . December , Midland, Michigan : The Dow Chemical Company . Personal communication