Sandburg, C. Good morning, America: Carl Sandburg. The city.(1979).
Chicagoスタイル(17版)引用形式Sandburg, Carl. "Good Morning, America: Carl Sandburg." The City.(1979) .
MLA(8版)引用形式Sandburg, Carl. "Good Morning, America: Carl Sandburg." The City.(1979), .
警告: この引用は必ずしも正確ではありません.