Sellars, R. W. ,  1880- <br/><br/>
The essentials of logic / 
by R. W. Sellars 
 - Boston :  Houghton Mifflin,  c1917 
 - vii, 349 p. :  ill. ;  19 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic
<br/><br/><label>Dewey Class. No.: </label>160