edited by Ernest A. Baker
Cassell, 1935
Buku Referensi
Chapman, Robert L.
London Pan Books 1988
Buku Referensi
Fergusson, Rosalind
Routledge, 1994
Buku Referensi
Partridge, Eric, 1894-1979
Routledge, 1984
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revised by J.R.V. Marchant and Joseph F. Charles
Cassell, 1952
Buku Referensi