by Samuel H. Beer ... [et al.]
Random House, 1965
Buku Teks
edited by R.M. Whiteside
Graham and Trotman, 1988
Buku Referensi
edited by R.M. Whiteside
Graham and Trotman, 1988
Buku Referensi
Hayes, Carlton J. H., author
Macmillan, 1932
Buku Teks
Williams, E.N., author
Penguin Books, 1970
Buku Teks