Ranaweera,A.M. <br/><br/>
Integrated science in the junior secondary school in sri lanka 

 - Paris :  The Unesco press,  1976 
 - 31p.;  18cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Sciences
<br/><br/><label>Dewey Class. No.: </label>370.78  / RAN