Filho, L. (1994). Communicating environmental risks: Environmental education as a tool for environmental desaster management. Centre for environmental studies.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Filho, Leal. Communicating Environmental Risks: Environmental Education as a Tool for Environmental Desaster Management. Dhaka: Centre for environmental studies, 1994.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Filho, Leal. Communicating Environmental Risks: Environmental Education as a Tool for Environmental Desaster Management. Centre for environmental studies, 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.