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Industrial Hygiene Engineering & Control, 552: Student manual, [Section 8

National Institute for Occupational Safety and Health. Division of Training & Manpower Development

出版	Department of Health, Education, and Welfare, Public Health Service, Center for Disease Control, National Institute for Occupational Safety and Health, Division of Training and Manpower Development, 1979
URL	http://books.google.com.hk/books?id=D1tyMTh7rNAC&hl=&source=gbs_api