(1989). Hearings before the subcommittee on telecommunications and fiaance of the committee on energy and commerce house of representatives one hundredth congress. Washington: U.S. Government Printing Office.
Chicago-tyylinen lähdeviittausHearings Before the Subcommittee On Telecommunications and Fiaance of the Committee On Energy and Commerce House of Representatives One Hundredth Congress. Washington: U.S. Government Printing Office, 1989.
MLA-viiteHearings Before the Subcommittee On Telecommunications and Fiaance of the Committee On Energy and Commerce House of Representatives One Hundredth Congress. Washington: U.S. Government Printing Office, 1989.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.