Jusay, A. (2002). How five youngsters became full-fledged environmentalists. Manila Bulletin.
Cita Chicago (17th ed.)Jusay, Annalyn. "How Five Youngsters Became Full-fledged Environmentalists." Manila Bulletin 2002.
Cita MLA (9th ed.)Jusay, Annalyn. "How Five Youngsters Became Full-fledged Environmentalists." Manila Bulletin, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.