Galbraith, J. K. The great crash 1929. Houghton mifflin company.
Lua i Stíl Chicago (17ú heag.)Galbraith, John Kenneth. The Great Crash 1929. Houghton mifflin company.
Lua MLA (8ú heag.)Galbraith, John Kenneth. The Great Crash 1929. Houghton mifflin company.
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