Links to more information:
http://www.sites.si.edu/exhibitions/exhibits/bracero_project/main.htm
http://www.latinamericanstudies.org/immigration/bracero-timeline.htm
http://www.ufw.org/_page.php?menu=research&inc=history/07.html
http://braceroarchive.org/
https://migration.ucdavis.edu/rmn/more.php?id=1112_0_4_0
http://www.smithsonianmag.com/history/how-cesar-chavez-changed-the-world-3735853/?no-ist
http://www.latinamericanstudies.org/immigration/bracero-timeline.htm
http://www.ufw.org/_page.php?menu=research&inc=history/07.html
http://braceroarchive.org/
https://migration.ucdavis.edu/rmn/more.php?id=1112_0_4_0
http://www.smithsonianmag.com/history/how-cesar-chavez-changed-the-world-3735853/?no-ist