APA
Balassa B. A., . (1981). Shifting patterns of World trade and competitions. Washington, DC: World Bank.
Chicago
Balassa Bela A, . 1981. Shifting patterns of World trade and competitions. Washington, DC: World Bank.
Harvard
Balassa B. A., . (1981). Shifting patterns of World trade and competitions. Washington, DC: World Bank.
MLA
Balassa Bela A, . Shifting patterns of World trade and competitions. Washington, DC: World Bank. 1981.