Não informado. (1971). COMSAT technical review. Communications Satellite Corporation.
Chicago-viite (17. p.)Não informado. COMSAT Technical Review. Clarksburg, Md: Communications Satellite Corporation, 1971.
MLA-viite (8. p.)Não informado. COMSAT Technical Review. Communications Satellite Corporation, 1971.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.