Hay, Donald G. <br/><br/>
Independent health insurance plans in theUnited States : 1961 
by Donald G. Hay, Louis S. Reed And Robert E. Melia 
 - Washington  U.S. Government Printing Office  1963 
 - v,45p. 
<br/><br/> U.S. Department Of Health, Education, And Welfare 
<br/><br/><label>Dewey Class. No.: </label>Q55x73 U3i