Pultr, A., & Trnková, V. (1980). Combinatorial, algebraic and topological representacions of groups, semigroups and categories. North-Holland.
Citace podle Chicago (17th ed.)Pultr, Ales, a Vera Trnková. Combinatorial, Algebraic and Topological Representacions of Groups, Semigroups and Categories. Amsterdam: North-Holland, 1980.
Citace podle MLA (9th ed.)Pultr, Ales, a Vera Trnková. Combinatorial, Algebraic and Topological Representacions of Groups, Semigroups and Categories. North-Holland, 1980.
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