Glennan, T.K., Jr. (1972) "Using experiments for social research and planning." Monthly Labor Rev. (February).
2.
Kershaw, D.N. and J. Small (forthcoming) "Data confidentiality and privacy: lessons from the New Jersey negative income tax experiment."
3.
Metcalf, C.E. (1971) "Making inferences from controlled income maintenance experiments." Institute for Research on Poverty Discussion Paper (September): 103-71.
4.
Williams, W. (1971) Social Policy Research and Analysis: The Experience in the Federal Social Agencies. New York: Elsevier.