Kotarbinski, Tadeusz <br/><br/>
Praxiology: an introduction to the sciences of efficient action 
by Tadeusz Kotarbinski 
 - Oxford  Pergamon  1965 
 - 219p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Act (Philosophy)
<br/><br/><label>Dewey Class. No.: </label>I52 K848