(1986). Chemistry teaching and the environment. Unesco Division of Science Technical and Vocational Education.
Chicago Style aipamenaChemistry Teaching and the Environment. Paris: Unesco Division of Science Technical and Vocational Education, 1986.
MLA aipamenaChemistry Teaching and the Environment. Unesco Division of Science Technical and Vocational Education, 1986.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.