COORAY, P.G <br/><br/>
Guid to scientific and technical writing 
/[by] P.G.Cooray 
 - Hindagala  P.G.Cooray  1992 
 - xiii, 159 p. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9559543407 
<br/><br/><label>Dewey Class. No.: </label>7  / COO