ebrary, Inc. (1998). The psychological well-being of nonhuman primates. National Academy Press.
Chicago-viite (17. p.)ebrary, Inc. The Psychological Well-being of Nonhuman Primates. Washington, D.C.: National Academy Press, 1998.
MLA-viite (9. p.)ebrary, Inc. The Psychological Well-being of Nonhuman Primates. National Academy Press, 1998.
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