Montreal, 25 April-12 May 1961 / 
International Civil Aviation Organization 
 - Montreal :  ICAO,  1961 
 - Various pagings. ;  27 cm. 
<br/><br/><label>ISBN: </label> USD 1.00 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography<br/>Electrodiagnosis
<br/><br/><label>Dewey Class. No.: </label>629.13252