Evans, Bergen, 1904-
A dictionary of contemporary American usage
Random House, 1957
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Burt, Angela
The A-Z of correct english / Angela Burt
howtobooks, 2002
 Buku Teks SO
Nicholson, Margaret
A dictionary of American-English usage, based on Fowler's Modern English usage
Oxford University Press, 1957
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The holt basic dictionary of American English
editor, Alvina Treut Burrows
Holt, Rinehart and Winston, 1966
 Buku Referensi
The holt intermediate dictionary of American English
Holt, Rinehard and Winston, Inc.
Holt, Rinehart and Winston,Inc, 1966
 Buku Teks SO