Isaacs, A. (1948). International trade; tariff and Commercial policies. R.D. Irwin.
Chicago Style (17. basım) AtıfIsaacs, Asher. International Trade; Tariff and Commercial Policies. Chicago, III.: R.D. Irwin, 1948.
MLA (9th ed.) AtıfIsaacs, Asher. International Trade; Tariff and Commercial Policies. R.D. Irwin, 1948.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..