Ruiz, J. B. UN climate summit sets goals to save forests, use clean energy. Manila Bulletin.
Chicago-viite (17. p.)Ruiz, JC Bello. "UN Climate Summit Sets Goals to Save Forests, Use Clean Energy." Manila Bulletin .
MLA-viite (9. p.)Ruiz, JC Bello. "UN Climate Summit Sets Goals to Save Forests, Use Clean Energy." Manila Bulletin, .
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.