Exner Robert M <br/><br/>
Logic in elementary mathematics 
Exner Robert M; Rosskopf Myron F 
 -  1959 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics
<br/><br/><label>Dewey Class. No.: </label>BogR1, J9