01020cam a22002651  4500001001300000003000400013005001700017008004100034010001700075035002000092040004400112042001200156050002000168082001400188110003900202245012400241260004900365300004500414490003700459500012800496650001600624650001300640650003100653810007000684l  42000091 DLC20260227111538.0841204s1941    dcua         f000 0 eng c  al  42000091   a(OCoLC)11450976  aU.S. Dept. of labor. Libr.cNAlA-MdDLC  apremarc00aRA609b.U6 1939  a362.709731 aUnited States.bChildren's Bureau.10aMaternal and child-health services under the Social security act, title V, Part 1;bdevelopment of program, 1936-39 ...  a[Washington,bU.S. Govt. Print. Off.,c1941]  avi, 109 p. incl. tables, diagrs.c23 cm.1 aIts Bureau publication,vno. 259  aAt head of title: United States Dept. of labor, Frances Perkins, secretary. Children's bureau, Katharine F. Lenroot, chief. 0aChild care. 0aMothers. 0aInfantsxCare and hygiene.1 aUnited States.bChildren's Bureau.tBureau publication,vno. 259.