Bolitho, A.R. <br/><br/>
Learn English for science 1  teacher's book / 
A.R. Bolitho 
 - London :  Longman  1977 
 - 28p.: ill. 
<br/><br/><label>ISBN: </label>582554829 
<br/><br/><label>LC Class. No.: </label>Q 209