TY - BOOK AU - Welch,Kathryn Hand TI - The meaning of state supervision in the social protection of children, AV - HV741 .W35 PY - 1940/// CY - Washington PB - U.S. Govt. print. off. N1 - At head of title: United States Department of labor. Frances Perkins, secretary. Children's bureau. Katharine F. Lenroot, chief ER -