Cita APA (7th ed.)

Pultr, A., & Trnková, V. (1980). Combinatorial, algebraic and topological representacions of groups, semigroups and categories. North-Holland.

Cita Chicago (17th ed.)

Pultr, Ales, i Vera Trnková. Combinatorial, Algebraic and Topological Representacions of Groups, Semigroups and Categories. Amsterdam: North-Holland, 1980.

Cita MLA (9th ed.)

Pultr, Ales, i Vera Trnková. Combinatorial, Algebraic and Topological Representacions of Groups, Semigroups and Categories. North-Holland, 1980.