AchenChristopher H.1986. The Statistical Analysis of Quasi-Experiments. Berkeley: University of California Press
2.
AgrestiAlanFinlayBarbara. 1986. Statistical Methods for the Social Sciences. Second ed.San Francisco: Dellen
3.
CampbellDonald T.1985. “Measuring the Effects of Social Innovations by Means of Time Series”. In Statistics: A Guide to the Unknown. Second ed., edited by TanurJudith M.MostellerFrederickKruskalWilliam H.LinkRichard F.PietersRichard S.RisingGerald R., Monterey, CA: Wadsworth and Brooks/Cole
4.
DavidPaul A.GutmanHerbert G.SutchRichardTeminPeterWrightGavin. 1976. Reckoning with Slavery. New York: Oxford University Press
5.
Department of Foreign Affairs. 1985. South Africa 1985 Official Yearbook of the Republic of South Africa. Eleventh ed.Cape Town, South Africa: CTP
6.
Department of Foreign Affairs. 1986. South Africa 1986, (Official Yearbook of the Republic of South Africa. Twelfth ed.Cape Town, South Africa: CTP
7.
FogelRobert WilliamEngermanStanley L., 1974a. Time on the Cross: The Economics of American Negro Slavery. Boston: Little, Brown
8.
FogelRobert WilliamEngermanStanley L., 1974b. Time on the Cross: Evidence and Methods. Boston: Little, Brown
9.
GastwirthJoseph L.GreenhouseSamuel W., 1987. “Estimating a Common Relative Risk: Application in Equal Employment”. Journal of the American Statistical Association82: 38–45
10.
→HirschiTravis1981. “Review of Taboos in Criminology”, edited by SagarinEdward. Crime & Delinquency27: 560–563
11.
LiebersonStanley1971. “An Empirical Study of Military-Industrial Linkages”. American Journal of Sociology76: 562–584
12.
LiebersonStanley1985. Making It Count: The Improvement of Social Research and Theory. Berkeley: University of California Press
13.
Merriam-Webster1985. Webster's Ninth New Collegiate Dictionary. Springfield, MA: Merriam-Webster
14.
→MillerC. Arden1985. “Infant Mortality in the U.S”. Scientific American253: 31–37
15.
MooreBarringtonJr.1970. Reflections on the Causes of Human Misery. Boston: Beacon
16.
RadeletMichael L.1981. “Racial Characteristics and the Imposition of the Death Penalty”. American Sociological Review46: 918–927
17.
SingerIsaac BashevisBurginRichard. 1986. Conversations with Isaac Bashevis Singer. New York: Farrar, Straus & Giroux
18.
WilsonWilliam Julius1978. The Declining Significance of Race: Blacks and Changing American Institutions. Chicago: University of Chicago Press
19.
WilsonWilliam Julius1980. “A Response to Marrett and Pettigrew”. Contemporary Sociology9: 21–24
20.
WilsonWilliam Julius1987. The Truly Disadvantaged: The Inner City, the Underclass, and Public Policy. Chicago: University of Chicago Press
21.
ZeiselHans1981. “Race Bias in the Administration of the Death Penalty: The Florida Experience”. Harvard Law Review95: 456–468