GUTMAN, P. M. (1964). Economic Growth, An American Problem Peter M. Gutmann. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)GUTMAN, Peter M. Economic Growth, An American Problem Peter M. Gutmann. Prentice Hall, 1964.
Lua MLA (8ú heag.)GUTMAN, Peter M. Economic Growth, An American Problem Peter M. Gutmann. Prentice Hall, 1964.
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