National communication systems : some policy issues and options

MLA

Sommerlad, Ernest Lloyd. National communication systems : some policy issues and options. Paris : Unesco ; New York : distributed in the U.S. by Unesco Publications Center, 1975.

APA

Sommerlad, E. (1975). National communication systems : some policy issues and options. Paris : Unesco ; New York : distributed in the U.S. by Unesco Publications Center.

Chicago

Sommerlad, Ernest Lloyd. National communication systems : some policy issues and options. Paris : Unesco ; New York : distributed in the U.S. by Unesco Publications Center, 1975.