Sandburg, C. Prayers of Steel: Carl Sandburg. The Midwest.(1979).
Chicagoスタイル(17版)引用形式Sandburg, Carl. "Prayers of Steel: Carl Sandburg." The Midwest.(1979) .
MLA(8版)引用形式Sandburg, Carl. "Prayers of Steel: Carl Sandburg." The Midwest.(1979), .
警告: この引用は必ずしも正確ではありません.