Laskin, P. L. (1969). Communicating by satellite: Report of the Twentieth Century Fund Task Force on International Satellite Communications. New York: Twentieth Century Fund Task Force.

Laskin, Paul L. Communicating By Satellite: Report of the Twentieth Century Fund Task Force On International Satellite Communications. New York: Twentieth Century Fund Task Force, 1969.

Laskin, Paul L. Communicating By Satellite: Report of the Twentieth Century Fund Task Force On International Satellite Communications. New York: Twentieth Century Fund Task Force, 1969.