the united nations development programme. Human Development Report 1997. oxford university press.
Chicago Style (17th ed.) Zitazioathe united nations development programme. Human Development Report 1997. new york: oxford university press.
MLA (9th ed.) Zitazioathe united nations development programme. Human Development Report 1997. oxford university press.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.