Spencer, Paul R.  1890- <br/><br/>
Thought-study readers, individualized 
by Paul R. Spencer, Roma Gans, Helen W. Horst; illustrated by Donald D. Nelson. 
 - Chicago, New York,  Lyons and Carnahan  [c1929- 
 - v.  col. illus.  19 1/2 cm. 
<br/><br/> "Answers", inverted at end of each book. 
<br/><br/><label>LCCN: </label>ca 29000682  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Readers.
<br/><br/><label>LC Class. No.: </label>PE1117  / .S69