Gillispie, Charles Coulston, author
Princeton University Press, 1960
Buku Teks
Hutten, Ernest H.
Greenwood Press, 1978
Buku Teks
Keller, Evelyn Fox, author
Yale University Press , 1985
Buku Teks
edited by Donald Davidson (and others)
Springer Netherland, 1969
Buku Teks
Kymlicka, Will, author
Clarendon Press, 1990
Buku Teks