United Nations Educational, Scientific and Cultural Organization. (1981). A systems approach to teaching and learning procedures: A guide for educators (2nd rev. exp. ed.). Unesco Press.
Chicago Style (17th ed.) CitationUnited Nations Educational, Scientific and Cultural Organization. A Systems Approach to Teaching and Learning Procedures: A Guide for Educators. 2nd rev. exp. ed. Paris: Unesco Press, 1981.
MLA (8th ed.) CitationUnited Nations Educational, Scientific and Cultural Organization. A Systems Approach to Teaching and Learning Procedures: A Guide for Educators. 2nd rev. exp. ed. Unesco Press, 1981.
Warning: These citations may not always be 100% accurate.