Funk, Wilfred John,  1883-1965. <br/><br/>
30 days to a more powerful vocabulary / 
 Thirty days to a more powerful vocabulary 
By Wilfred Funk & Norman Lewis ; Newly revised by Norman Lewis. 
 - New York :  Pocket Books,  1970. 
 - xii, 244 p. ;  22 cm. 
<br/><br/><label>ISBN: </label>0671436767 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vocabulary<br/>English language--Glossaries, vocabularies, etc.