(1986). Chemistry teaching and the environment. Unesco Division of Science Technical and Vocational Education.
Citazione stile Chigago Style (17a edizione)Chemistry Teaching and the Environment. Paris: Unesco Division of Science Technical and Vocational Education, 1986.
Citatione MLA (9a ed.)Chemistry Teaching and the Environment. Unesco Division of Science Technical and Vocational Education, 1986.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.