Campbell, V. N. (1974). The Televote System for Civic CommunicationP. Palo Alto: American Institutes for Research.
2.
Campbell, V. N. (1975). Televote. Palo Alto: American Institute for Research.
3.
Gore. A. (1962). A Senator Looks At The Polls, in Christenson, R. M. and McWilliams, R. O. (eds.), Voice of the People: Readings in Public Opinion and Propaganda. New York: McGraw-Hill.
4.
McDonald, D. (1962). Opinion Polls.
5.
Roll, C. W. Jr., and Cantril, A. H. (1972). Polls: Their Use and Misuse in Politics. New York: Basic Books.
6.
Teer, F. and Spence, J. (1973). Political Opinion Polls. London: Hutchinson University Library.
