APA-ийн эшлэл(7 дахь хэвлэлт)
National Research Council (U.S.). Committee on Chemical Toxicity and Aging, ebrary, Inc, Butler, R. N., & Pfitzer, E. A. (1987). Aging in today's environment. National Academy Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
National Research Council (U.S.). Committee on Chemical Toxicity and Aging, Inc ebrary, Robert N. Butler, ба Emil A. Pfitzer. Aging in Today's Environment. Washington, D.C.: National Academy Press, 1987.
MLA -ийн эшлэл (9 дэх хэвлэлт)
National Research Council (U.S.). Committee on Chemical Toxicity and Aging, et al. Aging in Today's Environment. National Academy Press, 1987.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.