Heyneman, Stephen P. <br/><br/>
Textbooks and achievement: What we know 
by Stephen P. Heyneman, Joseph P. Farrell and Manuel A. Sepu 
 - Washington, D.C.  IBRD  1978 
 - 34p. 
 - World Bank Staff Working Paper No.298 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Text Books
<br/><br/><label>Dewey Class. No.: </label>P144 In8