Smith, Thomas C., author
Standford University Press, 1965
Buku Teks
Havens, Thomas R.H., author
Princeton University Press, 1974
Buku Teks
Friedell, Egon
Alfred A Knopf, 1953
Buku Teks
Schapiro, J. Salwyn
Houghton Miffiln, 1953
Buku Teks
Friedell, Egon
Alfred A. Knopf , 1954
Buku Teks