the united nations development programme. Human Development Report 1997. oxford university press.
Citazione stile Chigago Style (17a edizione)the united nations development programme. Human Development Report 1997. new york: oxford university press.
Citatione MLA (9a ed.)the united nations development programme. Human Development Report 1997. oxford university press.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.