Παραπομπή APA

World bank. (1996). : World resources, 1996-97: The urban environment. Oxford university press.

Παραπομπή Chicago Style

World bank. : World Resources, 1996-97: The Urban Environment. New York: Oxford university press, 1996.

Παραπομπή MLA

World bank. : World Resources, 1996-97: The Urban Environment. Oxford university press, 1996.