Silva, J.W.De. <br/><br/>
English For Science And Technology :  Part 2 

 - Gunasena  Colombo  1976 
 - viii, 200 p.  21 cm 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>425 SIL 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Grammar of Standard Language
<br/><br/><label>Dewey Class. No.: </label>425  / SIL