Mahony, Michael Joseph,  1860- <br/><br/>
Essentials of formal logic 
by Michael J. Mahony. 
 - New York  Encyclopedia Press,  1918. 
 - [6] 95 p.  20 cm. 
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<br/><br/><label>LCCN: </label>18006433  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.
<br/><br/><label>LC Class. No.: </label>BC108  / .M3