APA (7th ed.) Citation

Unesco. (1953). Directory of international scientific organizations ([2nd ed.].). UNESCO.

Chicago Style (17th ed.) Citation

Unesco. Directory of International Scientific Organizations. [2nd ed.]. [Paris]: UNESCO, 1953.

MLA (8th ed.) Citation

Unesco. Directory of International Scientific Organizations. [2nd ed.]. UNESCO, 1953.

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