ebrary, Inc. (2000). Safe work in the 21st century: Education and training needs for the next decade's occupational safety and health personnel. National Academy Press.
Citace podle Chicago (17th ed.)ebrary, Inc. Safe Work in the 21st Century: Education and Training Needs for the Next Decade's Occupational Safety and Health Personnel. Washington, DC: National Academy Press, 2000.
Citace podle MLA (9th ed.)ebrary, Inc. Safe Work in the 21st Century: Education and Training Needs for the Next Decade's Occupational Safety and Health Personnel. National Academy Press, 2000.
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