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注記
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Reprint of A summer in the country, edited by G. Binder, published in National Child Labor Committee publication no. 377, 1939; of Child labor in New York canning factories, by E. F. Brown, published in the Child labor bulletin, 1913; of Child labor in the sugar-beet fields of Colorado, by E. N. Clopper and L. W. Hine, published in the Child labor bulletin, 1916; of Cotton or school, by K. Clugston, published in National Child Labor Committee publication no. 387, 1943; of California the golden, by E. Duke, published in the American child, 1920; of Day and night in a vegetable canning factory, by J. J. Eschenbrenner, published in the Child labor bulletin, 1913; of Children in strawberries, by R. G. Fuller, published in National Child Labor Committee publication no. 380, 1940; of The onion workers, by C. E. Gibbons, published in the American child, 1919; of Photographs from New York State canneries, published in the Child labor bulletin, 1913; of Pick for your supper, by J. E. Sidel, published in National Child
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