WHITING D P. (1973). FINANCE OF FOREIGN TRADE & FOREIGN EXCHANGE (2ND.). MACDONALD & EVANS.
Lua i Stíl Chicago (17ú heag.)WHITING D P. FINANCE OF FOREIGN TRADE & FOREIGN EXCHANGE. 2ND. LONDON: MACDONALD & EVANS, 1973.
Lua MLA (9ú heag.)WHITING D P. FINANCE OF FOREIGN TRADE & FOREIGN EXCHANGE. 2ND. MACDONALD & EVANS, 1973.
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