Lua APA (7ú heag.)

.jaspersen, f. z., .aylward, a. h., & .sumlinski, m. a. (1991). Trends in private investment in developing countries: Statistics for 1970 - 94. World Bank.

Lua i Stíl Chicago (17ú heag.)

.jaspersen, frederick z., anthony h. .aylward, agus mariusz a. .sumlinski. Trends in Private Investment in Developing Countries: Statistics for 1970 - 94. Washington, DC: World Bank, 1991.

Lua MLA (9ú heag.)

.jaspersen, frederick z., et al. Trends in Private Investment in Developing Countries: Statistics for 1970 - 94. World Bank, 1991.

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