00666cam a2200229 a 450000100060000000300080000600500170001400800410003101000130007203500100008504000360009505000150013108200150014610000370016124500560019824600310025426000350028530000260032049000300034650400410037665000190041796923BD-DhUL20160602171843.0910328s1914    nyu      b    000 0 eng d  a14013209  a96923  aANLbengcANLdABN-SNRdBD-DhUL00aHV713b.M3  a362.7bMAP1 aMangold, George Benjamin,d1876-10aProblems of child welfare / cby George B. Mangold.3 aChild welfare, Problems of  aNew York : bMacmillan,c1914.  axv, 522 p. : c21 cm.0 aSocial science text-books  a"Selected bibliography": p. 493-511. 0aChild welfare.