Carnap, Rudolf,  1891-1970. <br/><br/>
Foundations of logic and mathematics. 

 - Chicago, Ill.,  The University of Chicago press  [1939] 
 - 71 p.  22 cm. 
 - International encyclopedia of unified science ;  v. 1, no. 3 .
<br/><br/>"Selected bibliography": p. 69-70. 
<br/><br/><label>LCCN: </label>a  40003146 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic, Symbolic and mathematical.<br/>Mathematics--Philosophy.