D.C. Heath and Company , 1989
Buku Teks
edited by A. Grenfell Price
Angus & Robertson, 1959
Buku Teks
Ferguson, Wallace K., author
Sir Isaac Pitman & Sons, [date of publication not identified]
Buku Teks
Naidis, Mark, author
Dryden Press, 1972
Buku Teks
Cambridge University Press, 2009
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