∆       http://history1900s.about.com/library/photos/blyindexdepression.htm

∆      Children of the Depression by Russell Freedman Published by Houghton Mifflin Company in 2006

∆       Dust to Eat by Michael L. Cooper Published by Clarion Books in 2004 

∆        http://www.ats.edu.mx/proyectos/racevedo/depression/resources.htm