APA (7th ed.) Zitazioa
Lawson, A. (2006). Walt Whitman & the class struggle. University of Iowa Press.
Chicago Style (17th ed.) Zitazioa
Lawson, Andrew. Walt Whitman & the Class Struggle. Iowa City: University of Iowa Press, 2006.
MLA (9th ed.) Zitazioa
Lawson, Andrew. Walt Whitman & the Class Struggle. University of Iowa Press, 2006.
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