Forstner, H., & Ballance, R. (1990). Competing in a global economy: An empirical study on specialization and trade in manufactures. Unwin Hyman.
Lua i Stíl Chicago (17ú heag.)Forstner, Helmut, agus Robert Ballance. Competing in a Global Economy: An Empirical Study on Specialization and Trade in Manufactures. London ; Boston: Unwin Hyman, 1990.
Lua MLA (9ú heag.)Forstner, Helmut, agus Robert Ballance. Competing in a Global Economy: An Empirical Study on Specialization and Trade in Manufactures. Unwin Hyman, 1990.
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