Freedman, R. (1994). Kids at work: Lewis Hine and the crusade against child labor. Clarion Books.
Cita Chicago Style (17a ed.)Freedman, Russell. Kids at Work: Lewis Hine and the Crusade Against Child Labor. New York: Clarion Books, 1994.
Cita MLA (9a ed.)Freedman, Russell. Kids at Work: Lewis Hine and the Crusade Against Child Labor. Clarion Books, 1994.
Precaución: Estas citas no son 100% exactas.