Unesco. (2001). Life Skills in non- formal education: A review. UNESCO.
Chicago Style (17th ed.) ZitazioaUnesco. Life Skills in Non- Formal Education: A Review. NewDelhi: UNESCO, 2001.
MLA (9th ed.) ZitazioaUnesco. Life Skills in Non- Formal Education: A Review. UNESCO, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.