Sandburg, C. Good morning, America: Carl Sandburg. The city.(1979).
Lua i Stíl Chicago (17ú heag.)Sandburg, Carl. "Good Morning, America: Carl Sandburg." The City.(1979) .
Lua MLA (8ú heag.)Sandburg, Carl. "Good Morning, America: Carl Sandburg." The City.(1979), .
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