Terpstra, V. (1991). International Marketing /Vern Terpstra And Ravi Sarathy. The Dryden Press.
Lua i Stíl Chicago (17ú heag.)Terpstra, Vern. International Marketing /Vern Terpstra And Ravi Sarathy. The Dryden Press, 1991.
Lua MLA (8ú heag.)Terpstra, Vern. International Marketing /Vern Terpstra And Ravi Sarathy. The Dryden Press, 1991.
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