Wojcicki, Ryszard. <br/><br/>
Lectures on propositional calculi / 
Ryszard Wojcicki ; edited by R. Ladniak. 
 - Ossolineum :  Polish Academy of Science,  1984. 
 - 292 p. : 
 - The Polish Academy of Sciences institute of Philosophy and Sociology. .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>830401775X (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Propositional calculus.
<br/><br/><label>Dewey Class. No.: </label>511.3  / Le