Jusay, A. (2002). How five youngsters became full-fledged environmentalists. Manila Bulletin.
Dyfyniad Arddull ChicagoJusay, Annalyn. "How Five Youngsters Became Full-fledged Environmentalists." Manila Bulletin 2002.
Dyfyniad MLAJusay, Annalyn. "How Five Youngsters Became Full-fledged Environmentalists." Manila Bulletin, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.