APA-čujuhus (7. p.)
Klein, J. (1998). The study of groups. Routledge.
Chicago-čujuhus (17. p.)
Klein, Josephine. The Study of Groups. London: Routledge, 1998.
MLA-čujuhus (9. p.)
Klein, Josephine. The Study of Groups. Routledge, 1998.
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