00929cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035002000092040002600112042001200138050002400150060002700174110003900201245002700240260004800267300001900315490003200334500012800366500010000494810006400594999001700658l  33000117 DLC20260227111534.0820626s1933    xx a          000 0 eng    al  33000117   a(OCoLC)14735342  aDLCcDNLMdOCoLCdDLC  apremarc00aHV741b.A32 no. 2200 aW1bUN6181 no.220 19331 aUnited States.bChildren's Bureau.10aMothers' aid, 1931 ...  aWashington,bU.S. Govt. print. off.,c1933.  av, 39 p.bill.1 aBureau publicationvno. 220  aAt head of title: United States Department of labor.  Frances Perkins, secretary.  Children's bureau.  Grace Abbott, chief.  a"A similar survey was made by the Children's bureau in 1921 and 1922." - Letter of transmittal.1 aUnited States.bChildren's Bureau.tPublication ;vno. 220.  c36104d36104