Hultgren, Thor, 1902- Cost, prices and profits : their cyclical relations / Thor Hultgren - New York : National Bureau of Economic Research, c1965 - xxvi, 229 p. : ill. ; 24 cm. Includes index ISBN: USD 12.50 Subjects--Topical Terms: Costs, Industrial--United StatesProfit--United States Dewey Class. No.: 338.5