Thornley, G. C. <br/><br/>
Elementary scientific english practice / 
by G. C. Thornley. 
 - [S.l.] :  Longmans.,  1968. 
 - 107 p. :  ill., photo ;  18 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English Language--Practice.