Boyer, W. W., & Ratledge, E. C. (2009). Delaware politics and government. University of Nebraska Press.
Lua i Stíl Chicago (17ú heag.)Boyer, William W., agus Edward C. Ratledge. Delaware Politics and Government. Lincoln: University of Nebraska Press, 2009.
Lua MLA (9ú heag.)Boyer, William W., agus Edward C. Ratledge. Delaware Politics and Government. University of Nebraska Press, 2009.
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