APA aipamena

WORLD.. (1991). World development report 1991: The challenge of development. Oxford Univ. Press.

Chicago Style aipamena

WORLD.. World Development Report 1991: The Challenge of Development. Oxford: Oxford Univ. Press, 1991.

MLA aipamena

WORLD.. World Development Report 1991: The Challenge of Development. Oxford Univ. Press, 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.