Roy, A.  <br/><br/>
English for students of science 
A. Roy 
 - Hyderabad  Orient Longman  1991 
 - 233p. 
<br/><br/><label>ISBN: </label>9788125003953 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Composition and exercises
<br/><br/><label>Dewey Class. No.: </label>410.151 R8121e