. . . "Child abuse and neglect : progress of the National Center since May 1991 : statement of Joseph F. Delfico, Director of Income Security Issues, Human Resources Division, before the Subcommittee on Select Education, Committee on Education and Labor, House of Representatives"@en . . . . . . "Child abuse and neglect progress of the National Center since May 1991 : statement of Joseph F. Delfico, Director of Income Security Issues, Human Resources Division, before the Subcommittee on Select Education, Committee on Education and Labor, House of Representatives"@en . . . . . . "Progress of the National Center since May 1991"@en . . . . .