Research Institute of Telecommunications and Economics. (1979). Research report summaries '79. Japan: Research Institute of Telecommunications and Economics.
Chicago-tyylinen lähdeviittausResearch Institute of Telecommunications and Economics. Research Report Summaries '79. Japan: Research Institute of Telecommunications and Economics, 1979.
MLA-viiteResearch Institute of Telecommunications and Economics. Research Report Summaries '79. Japan: Research Institute of Telecommunications and Economics, 1979.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.