Directory of scientific research projects in Sri lanka 1970-1973 

 - Colombo  National Science Council  
 - 400p.,  32 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture <br/>Engineering and technology <br/>Medical science <br/>Natural science
<br/><br/><label>Universal Decimal Class. No.: </label>(x) 5.001  / NAT