BANK, W. (1990). Annual conference on development economics 1989. World Bank.
Chicago Style aipamenaBANK, WORLD. Annual Conference on Development Economics 1989. World Bank, 1990.
MLA aipamenaBANK, WORLD. Annual Conference on Development Economics 1989. World Bank, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.