1. Claire Selltiz, Marie Jahoda, Morton Deutsch, and Stuart W. Cook,Research Methods in Social Relations, New York, Holt, Rinehart and Winston, 1966.
2. Ibid; Carl Backman and Paul Secord (eds.),Problems in Social Psychology, New York: McGraw Hill, 1966, pp. 3–14; W. J. Good and P. M. Hatt,Methods in Social Research, New York: McGraw Hill, 1952.
3. Thorsten Sellin, “The Uniform Criminal Statistics Act,”Journal of Criminal Law, Criminology, and Police Science, Vol. 40, #6 (1950) p. 685; Ronald H. Beattie, “Problems of Criminal Statistics in the United States,”Journal of Criminal Law, Criminology, and Police Science, Vol. 415 (July, 1955), pp. 178–186; Peter P. Lejins, “Uniform Crime Reports”;The Michigan Law Review, Vol. 46, #6 (April, 1966), pp. 1011–1030; Roland J. Chilton, Persistent Problems of Crime Statistics. Paper presented at the 1966 meeting of the American Sociological Association in Miami.
4. Fred J. Murphy, Mary M. Shirley, and Helen Witmer, “The Incidence of Hidden Delinquency,”The American Journal of Orthopsychiatry, Vol. 16, #4, October, 1946, pp. 686–696.
5. Austin Porterfield,Youth in Trouble (Austin: Leo Potishman Foundation, 1946), p. 38.