Comber, L. C. <br/><br/>
Science education in nineteen countries :  an empirical study / 
L.C. Comber and John P. Keeves. 
 - New York :  Wiley,  c1973. 
 - 403 p. 
 - A Halsted Press book .
<br/><br/><label>ISBN: </label>0470166827 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching.