Sikorski, Roman <br/><br/>
Boolean algebras 

 - 3rd ed. 
 - Berlin  Springer-Verlag  1969 
 - x, 237 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra
<br/><br/><label>Dewey Class. No.: </label>512.5  / SIK