Pap, Arthur <br/><br/>
Semantics and necessary truth 

 - New haven :  Yale University Press,  1985 
 - xii, 456p.;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Neopositivismo
<br/><br/><label>Universal Decimal Class. No.: </label>164