Benjamin, Abram Cornelius <br/><br/>
Operationism / 
Abram Cornelius Benjamin 
 - Springfield :  Thomas Publishers,  1955 
 - 154p. 23cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics--Philosophy.
<br/><br/><label>Dewey Class. No.: </label>530.1  / BEN