. National Child Labor Committee (U.S.): tüm kitaplar Online
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Pamphlet, Issue 181...
Lewis Wickes HineThis book was originally published prior to 1923, and represents a reproduction of an important historical work, maintain
The Child Labor Bulletin, Volume 2
. National Child Labor Committee (U.S.)This book was originally published prior to 1923, and represents a reproduction of an important historical work, maintain
Uniform Child Labor Laws
. American Academy of Political and Social ScienceThis book was originally published prior to 1923, and represents a reproduction of an important historical work, maintain