Waismann, Friedrich. <br/><br/>
Introduction to mathematical thinking  the formation of concepts in modern mathematics 
with a foreword by Karl Menger. Translated from the German, Einführung in das mathematische Denken, by Theodore J. Benac. 
 - New York  F. Ungar Pub. Co.  [1951] 
 - 260 p.  illus.  24 cm. 
<br/><br/><label>LCCN: </label>51014953 //r90 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Philosophy.<br/>Number concept.
<br/><br/><label>LC Class. No.: </label>QA9  / .W332 
<br/><br/><label>Dewey Class. No.: </label>510.1