APA Style
Duncan, Peter J. S.. ().
Persidential elections in the United States .
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Chicago Style
Duncan, Peter J. S..
Persidential elections in the United States.
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MLA Style
Duncan, Peter J. S..
Persidential elections in the United States.
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Turabian Style
Duncan, Peter J. S..
Persidential elections in the United States.
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.