Crofton, Sir John. <br/><br/>
Respiratory diseases / 
by Sir John Crofton and Andrew Douglas. 
 - 3rd ed. 1st P.G. Asian economy ed. 
 - Singapore :  P.G. Pub.,  1984. 
 - xvi, 819 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>9971909537 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Respiratory tract diseases.