Maternity and infant care : in two rural counties in Wisconsin
著者
書誌事項
Maternity and infant care : in two rural counties in Wisconsin
（Rural child welfare series, no. 4）（Bureau publication / U.S. Department of Labor, Children's Bureau, no. 46）
Government Printing Office, 1919
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注記
At head of title: U.S. Department of Labor, Children's Bureau