Gray, William S. (William Scott), 1885-1960. <br/><br/>
What makes a book readable  with special reference to adults of limited reading ability an initial study 
by William S. Gary and Bernice E. Leary 
 - Chicago, Ill.  University of Chicago Press  1935 
 - xviii, 358 p. : tables (1 double) ; 24 cm. 
 - University of Chicago studies in library science. .
<br/><br/>'Predicted difficulty of 350 books': p. 399-350.'Textbooks in reading used in the interpretation of areas of difficulty represented by 350 adult books': p. 351-352. 
<br/><br/><label>LCCN: </label>35-027192 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Books and reading<br/>Reading