RIEHL, H. (1977). Foreign Exchange Market A Guide To Foreign Currency Oparations Heinz Riehl And Rita M. Rodriguez. McGraw-Hill.
Chicago-viite (17. p.)RIEHL, Heinz. Foreign Exchange Market A Guide To Foreign Currency Oparations Heinz Riehl And Rita M. Rodriguez. McGraw-Hill, 1977.
MLA-viite (8. p.)RIEHL, Heinz. Foreign Exchange Market A Guide To Foreign Currency Oparations Heinz Riehl And Rita M. Rodriguez. McGraw-Hill, 1977.
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