Love, Joseph L.
Stanford University Press, 1971
Buku Teks
Barreto, Luis Filipe
Imprensa Nacional-Casa da Moeda, 1988
Buku Teks
Coimbra, David, editor
RS Clube dos 13 Brasil Buenas Ideias, 2009
Buku Referensi
Freyre, Gilberto
Alfred A. Knopf, 1946
Buku Teks
Souto, Marcilio C. P. de, editor
Springer-Verlag, 2012
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