Text ( visual ) : unmediated Reserves, reserve currencies, and vehicle currencies : an argument / [by] Robert V. Roosa and Fred Hirsch. -- Princeton, N.J. : International Finance Section, Dept. of Economics, Princeton University , c1966. -- 41 p ; 23 cm. -- (Essays in international finance ; no. 54). -- (BA13524631) ; https://ci.nii.ac.jp/ncid/BA13524631 Author Heading(s): Roosa, Robert V. ; Hirsch, Fred. -- Classification(s): LCC : HG3826 ; DC : 332.4. -- Subject Heading(s): LCSH : Foreign exchange problem ; LCSH : Currency question