APA (7th ed.) Citation

Sommerlad, E. L. (1975). National communication systems: Some policy issues and options. Unesco.

Chicago Style (17th ed.) Citation

Sommerlad, Ernest Lloyd. National Communication Systems: Some Policy Issues and Options. Paris: Unesco, 1975.

MLA (9th ed.) Citation

Sommerlad, Ernest Lloyd. National Communication Systems: Some Policy Issues and Options. Unesco, 1975.