Cobb, David,  b1926- <br/><br/>
Constructive comprehension / 
by David Cobb 
 - London :  Longmans,  1969 
 - v, 125 p. :  illus, forms ;  21 cm. 
<br/><br/><label>ISBN: </label>0582523133 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Readers--1950<br/>English language--Text--Books for foreigners