TY - BOOK AU - Ballantyne, Bryan. AU - Schwabe, Paul H. ED - British Occupational Hygiene Society.;Great Britain.;Royal Society of Medicine (Great Britain) TI - Respiratory protection: principles and applications SN - 412227509 PY - 1981/// CY - London ; New York PB - Chapman and Hall KW - Breathing apparatus KW - Protective Devices KW - Respiratory Protective Devices N1 - Based on a symposium held jointly between the Royal Society of Medicine, the British Occupational Hygiene Society, and the Chemical Defence Establishment in 1980 ER -