Shmidt, O. I. (1966). Abstract theory of groups. W. H. Freeman.
Lua i Stíl Chicago (17ú heag.)Shmidt, Otto IUl'evich. Abstract Theory of Groups. San Francisco: W. H. Freeman, 1966.
Lua MLA (9ú heag.)Shmidt, Otto IUl'evich. Abstract Theory of Groups. W. H. Freeman, 1966.
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