Tohutoro APA (7th ed.)
Allen, G. W. (1972). Carl Sandburg. University of Minnesota Press.
Tohutoru Kātū Chicago (17th ed.)
Allen, Gay Wilson. Carl Sandburg. Minneapolis, MN: University of Minnesota Press, 1972.
Tohutoro MLA (9th ed.)
Allen, Gay Wilson. Carl Sandburg. University of Minnesota Press, 1972.
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