Robert S. Manthy (Manthy, Robert S.)

• 
  Natural Resource Commodities--A Century of Statistics: Prices, Output, Consumption, Foreign Trade, and Employment in the United States, 1870-1973
  by Resources for the Future, Robert S. Manthy, Joan R. Tron
  Hardcover, Published for Resources for the Future by the Johns Hopkins University Press, ISBN 0801821428 (0-8018-2142-8)