Dyfyniad APA
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.
Dyfyniad Arddull Chicago
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.
Dyfyniad MLA
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.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.