Sellery, G.C.
Renaissance: its nature and origins
Madison: University of Wisconsin Press, 1950
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Kelly, Alfred H.
The American constitution its origins and development
W.W. Norton, c 19
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Kelly, Alfred H.
The American constitution its origins and development
W.W. Norton, 1963
 Buku Teks
Kelly, Alfred H.
The American constitution its origins and development
W.W. Norton, 1955
 Buku Teks
Kelly, Alfred H.
The American constitution : its origins and development
W.W. Norton, 1983
 Buku Teks