Brown, Emma E., Child Toilers of Boston Streets.
Buffalo Child Labor Problems, folder issued by New York Child Labor Committee, 1911.
Campagnac and Russell, Education, Earnings and Social Condition of Boys Engaged in Street Trading in Manchester, Board of Education Special Reports on Educational Subjects, 1902, Vol. VIII, pp. 653-670.
Child Labor in Germany Outside of Factories, in Report of United States Commissioner of Education, 1900-1901, Vol. I, pp. 54-80.
Child Labor on the Street—The Newsboy, leaflet of New York Child Labor Committee, 1907.
Child Labor in the United States, Bulletin 69 of Bureau of Census, 1907.
Clark, Davis W., American Child and Moloch of To-day, 1907, p. 40.
Clark, Victor S., Woman and Child Wage Earners in Great Britain, in Bulletin 80 of United States Bureau of Labor, January, 1909.
Cloete, J. G., The Boy and his Work, in Studies of Boy Life in Our Cities, edited by E. J. Urwick, 1904, pp. 129-133.
Clopper, Edward N., Children on the Streets of Cincinnati, in Proceedings of Fourth Annual Meeting of National Child Labor Committee, 1908, pp. 113-123.