Parry, S. Chalmers. <br/><br/>
Polylot medical questionnaire :    digital system of communication, in twenty-seven languages. 

 - 2nd ed. 
 - London :    William Heinemann Medical Books ,    1972. 
 - vi, 88 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Communication
<br/><br/><label>National Library of Medicine Call No.: </label>W 18   /  P249p 1972