Ranaweera, A. M. <br/><br/>
Integrated science in the junior secondary school in Sri Lanka / 
by A. M. Ranaweera 
 - Paris :  Unesco Press,  1976 
 - 31 p. ;  21 cm. 
<br/><br/><label>ISBN: </label>9231013742 
<br/><br/><label>LCCN: </label>77-366131 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching--Sri Lanka<br/>Interdisciplinary approach in education--Sri Lanka<br/>Curriculum planning--Sri Lanka