http://memory.loc.gov/ammem/collections/finder.html American Memory Historical Photographs Collection www.historyplace.com/unitedstates/childlabor/index.html Child Labor in America Lewis W. Hine www.hispanichealth.com Hispanic Health Council.Inc www.symbols.com Enciclopedia of Graphic Symbols www.aber.ac.uk/media/sections/textan07.html Semiotics www.aber.ac.uk/media/Documents/marxism/marxism.html Marxist Media Theory www.usc.edu/dept/elab/publications/ethno.html Ethnographics Press www.nombrefalso.com.ar Nombre Falso www.institutomora.edu.mx Instituto Mora de México