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.
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Chicago-čujuhus (17. p.)
National Research Council (U.S.). Committee on Chemical Toxicity and Aging, Inc ebrary, Robert N. Butler, juo Emil A. Pfitzer. Aging in Today's Environment. Washington, D.C.: National Academy Press, 1987.
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MLA-čujuhus (9. p.)
National Research Council (U.S.). Committee on Chemical Toxicity and Aging, et al. Aging in Today's Environment. National Academy Press, 1987.
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