APA (7th ed.) Citation

Unesco. (1973). New Unesco source book for science teaching. United Nations.

Chicago Style (17th ed.) Citation

Unesco. New Unesco Source Book for Science Teaching. United Nations, 1973.

MLA (8th ed.) Citation

Unesco. New Unesco Source Book for Science Teaching. United Nations, 1973.

Warning: These citations may not always be 100% accurate.