00716cam a22002171 4500 l 54000014 DLC 20260227111543.0 771118s1954 nyua 000 0 eng c l 54000014 (OCoLC)3429144 U.S. Dept. of Labor NRGE NRGE DLC HD6250.U3 N2 no. 415 Markoff, Sol The changing years, 1904-1954, 50th anniversary report. [New York, National Child Labor Committee, 1954] 23 p. illus. 22 x 28 cm. National Child Labor Committee (U.S.) Publication ; no. 415 National Child Labor Committee (U.S.) Child labor United States 36836 36836