Memoria :  1982 - 1988 / 
IMSS 
 - México :  IMSS,  [1981] 
 - 500 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medicina Social --Congresos -
<br/><br/><label>Dewey Class. No.: </label>362.1'063  / I59m