Proceedings of Conference on day care of children of working mothers, with special reference to defense areas, held in Washington, D. C., July 31 and August 1, 1941 ... - Conference on day care of children of working mothers (1941 : Washington, D. C.) (Washington, U.S. Govt. print. off., 1942)
At head of title: United States Dept. of labor, Frances Perkins, secretary. Children's bureau, Katharine F. Lenroot, chief.