APA引文

Twentieth Century Fund. Task Force on International Satellite Communications. (1969). Communicating by satellite. A Twentieth Century Fund Force.

Chicago Style (17th ed.) Citation

Twentieth Century Fund. Task Force on International Satellite Communications. Communicating by Satellite. New York: A Twentieth Century Fund Force, 1969.

MLA引文

Twentieth Century Fund. Task Force on International Satellite Communications. Communicating by Satellite. A Twentieth Century Fund Force, 1969.