Lua APA (7ú heag.)
Porter, D. H. (2008). On the divide: The many lives of Willa Cather. University of Nebraska Press.
Lua i Stíl Chicago (17ú heag.)
Porter, David H. On the Divide: The Many Lives of Willa Cather. Lincoln: University of Nebraska Press, 2008.
Lua MLA (9ú heag.)
Porter, David H. On the Divide: The Many Lives of Willa Cather. University of Nebraska Press, 2008.
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