Unesco. Division of Science, Technical and Vocational Education. (1986). Environmental education: Module for in-service training of science teachers and supervisors for secondary schools. UNESCO, Division of Science, Technical and Vocational Education.
Παραπομπή σε μορφή Chicago (17η εκδ.)Unesco. Division of Science, Technical and Vocational Education. Environmental Education: Module for In-service Training of Science Teachers and Supervisors for Secondary Schools. [Paris]: UNESCO, Division of Science, Technical and Vocational Education, 1986.
Παραπομπή σε μορφή MLA (8th εκδ.)Unesco. Division of Science, Technical and Vocational Education. Environmental Education: Module for In-service Training of Science Teachers and Supervisors for Secondary Schools. UNESCO, Division of Science, Technical and Vocational Education, 1986.