Boruvka O <br/><br/>
Foundations of the theory of groupoids and groups 

 - 215p.  cm. 
<br/><br/> Bibliography 203-209p 
<br/><br/><label>Standard No.: </label>19909 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B27, L6