Analysis of information sources in references of the Wikipedia article "Causes of the Great Depression" in English language version.
{{cite book}}: CS1 maint: postscript (link){{cite journal}}: Cite journal requires |journal= (help)CS1 maint: postscript (link)From one-sixth to one-quarter of all land had been used to grow animal feed.{{cite book}}: |journal= ignored (help){{cite journal}}: CS1 maint: postscript (link){{cite journal}}: Cite journal requires |journal= (help)Roosevelt prohibited complementary currencies by executive decree, though they might have offered a faster, cheaper and more effective means of pulling the US out of the Depression than his New Deal.
{{cite journal}}: Cite journal requires |journal= (help)CS1 maint: postscript (link)From one-sixth to one-quarter of all land had been used to grow animal feed.