Rice, Eugene F., author
W.W. Norton, 1970
Buku Teks
Schapiro, J. Salwyn
Houghton Miffiln, 1953
Buku Teks
Burns, Edward McNall, 1897-1972, author
W.W. Norton & Company, 1973
Buku Teks
Brunn, Geoffrey
Oxford University Press, 1960
Buku Teks
Macmillan, 1970
Buku Teks