APA (7th ed.) Citation

Unesco & Blake, C. (1975). A systems approach to teaching and learning procedures: A guide for educators in developing countries. The Unesco Press.

Chicago Style (17th ed.) Citation

Unesco and Charles Blake. A Systems Approach to Teaching and Learning Procedures: A Guide for Educators in Developing Countries. Paris: The Unesco Press, 1975.

MLA (9th ed.) Citation

Unesco and Charles Blake. A Systems Approach to Teaching and Learning Procedures: A Guide for Educators in Developing Countries. The Unesco Press, 1975.