Unesco-UNEP International Environmental Education Programme. (1986). Environmental education: Module for preservice training of teachers and supervisors for primary schools. Unesco Division of Science.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Unesco-UNEP International Environmental Education Programme. Environmental Education: Module for Preservice Training of Teachers and Supervisors for Primary Schools. [Paris]: Unesco Division of Science, 1986.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Unesco-UNEP International Environmental Education Programme. Environmental Education: Module for Preservice Training of Teachers and Supervisors for Primary Schools. Unesco Division of Science, 1986.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.