Pultr, Ales <br/><br/>
Combinatorial, algebraic and topological representations of groups, semigroups and categories 
/ Ales Pultr, Vera Trenkova 
. - Amsterdam; New York; Oxford  : North-Holland publishing company, 1980
. - VI-372p.  ; 23Cm. 
 - North-Holland mathmcal libray  Vol.22 .
<br/><br/>Bibliogr. p.353-365. Index 
<br/><br/><label>ISBN: </label>044485083X 
<br/><br/><label>Source: </label> Dons divers 
<br/><br/><label>Universal Decimal Class. No.: </label>513.83