Gold and the dollar crisis : the future of convertibility / Robert Triffin Triffin, Robert. Currency question. Currency question United States. Balance of payments United States. HG255 .T73 1961 332.4973 TRG London : Yale University Press, 1961. 1961. 1961 Text 181 p. eng Yale paperbound ; Y-39 Yale paperbound ; Y-39. United States. United States.