Hirsch, Werner Z. (Werner Zvi), 1920-2009.
Roberts, Markley. Trends in the supply and demand of medical care.
United States. Congress. Joint Economic Committee.
by Werner Z. Hirsch. Trends in the supply and demand of medical care / by Markley Roberts : materials prepared in connection with the Study of Employment, Growth, and Price levels, for consideration by the Joint Economic Committee, Congress of the United States, November 10,1959.