David, P. (2006). Article 31: The right to leisure, play and culture. Martinus Nijhoff Publishers.
Chicago Style (17th ed.) ZitazioaDavid, Paulo. Article 31: The Right to Leisure, Play and Culture. Leiden ; Boston: Martinus Nijhoff Publishers, 2006.
MLA (9th ed.) ZitazioaDavid, Paulo. Article 31: The Right to Leisure, Play and Culture. Martinus Nijhoff Publishers, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.