(1986). Chemistry teaching and the environment. Unesco Division of Science Technical and Vocational Education.
Chicago Style (17th ed.) CitationChemistry Teaching and the Environment. Paris: Unesco Division of Science Technical and Vocational Education, 1986.
ציטוט MLAChemistry Teaching and the Environment. Unesco Division of Science Technical and Vocational Education, 1986.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.