APA-ийн эшлэл(7 дахь хэвлэлт)
ebrary, Inc. (1998). Protecting youth at work: Health, safety, and development of working children and adolescents in the United States. National Academy Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
ebrary, Inc. Protecting Youth at Work: Health, Safety, and Development of Working Children and Adolescents in the United States. Washington, D.C.: National Academy Press, 1998.
MLA -ийн эшлэл (9 дэх хэвлэлт)
ebrary, Inc. Protecting Youth at Work: Health, Safety, and Development of Working Children and Adolescents in the United States. National Academy Press, 1998.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.