Cita APA

Sigel, E. (1983). The future of videotext: Worldwide prospects for home/office electronic information services. White Plains, NY: Knowledge Industry Publications.

Chicago Style Citation

Sigel, Efrem. The Future of Videotext: Worldwide Prospects for Home/office Electronic Information Services. White Plains, NY: Knowledge Industry Publications, 1983.

Cita MLA

Sigel, Efrem. The Future of Videotext: Worldwide Prospects for Home/office Electronic Information Services. White Plains, NY: Knowledge Industry Publications, 1983.