Elhuff, Lewis,  1880- <br/><br/>
Library individualistic and group-method of instruction in general science and the natural sciences, 
by Lewis Elhuff ... 
 - Harrisburg, Pa.,  The author,  c1929. 
 - 30 p.  23 cm. 
<br/><br/><label>LCCN: </label>ca 29000462  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching.
<br/><br/><label>LC Class. No.: </label>Q181  / .E6