Unesco-UNEP International Environmental Education Programme & Atreya, B. (1985). Environmental education: Module for inservice training of teachers and supervisors for primary schools. Unesco Division of Science, Technical and Environmental Education.
Citazione stile Chigago Style (17a edizione)Unesco-UNEP International Environmental Education Programme e B.D Atreya. Environmental Education: Module for Inservice Training of Teachers and Supervisors for Primary Schools. Paris: Unesco Division of Science, Technical and Environmental Education, 1985.
Citatione MLA (9a ed.)Unesco-UNEP International Environmental Education Programme e B.D Atreya. Environmental Education: Module for Inservice Training of Teachers and Supervisors for Primary Schools. Unesco Division of Science, Technical and Environmental Education, 1985.