Jusay, A. (2002). How five youngsters became full-fledged environmentalists. Manila Bulletin.
Cita Chicago Style (17a ed.)Jusay, Annalyn. "How Five Youngsters Became Full-fledged Environmentalists." Manila Bulletin 2002.
Cita MLA (9a ed.)Jusay, Annalyn. "How Five Youngsters Became Full-fledged Environmentalists." Manila Bulletin, 2002.
Precaución: Estas citas no son 100% exactas.