1. Range and Emphases of a Family Service Program, Family Service Association of America, New York, 1963, p. 25.
2. A Limited Research Program in a Family Agency
3. The Caseworker as Research Interviewer in Follow-up Studies
4. HerzogElizabeth, Some Guide Lines for Evaluative Research, Children's Bureau, Social Security Administration, U.S. Department of Health, Education, and Welfare, Government Printing Office, Washington, D.C., 1959, p. 48.