Advisory Commission on Intergovernmental Relations. Citizen participation in the American federal system. Washington, D.C.: U.S. Government Printing Office, 1979.
2.
Caplan, N., Morrison, A., & Stambaugh, R. J., The use of social science knowledge in policy decisions at the national level. Ann Arbor, Mich.: Institute for Social Research, University of Michigan, 1975.
3.
Kochen, M.Information systems for world models. In R. W. Deutsch, B. Fritsch, A. Markovits, & H. Jaguaribe (Eds.), Problems of world modeling. Cambridge, Mass.: Ballinger, 1977. Pp. 379-399.