Collins electronic english dictionary & thesaurus : user's guide
HarperCollins, 1995
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Collins compact dictionary and thesaurus
Collins, 2002
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New English dictionary and thesaurus
Geddes & Grosset, 2000
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Collins English spelling dictionary
HarperCollins Publishers, 1993
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Collins COBUILD English dictionary
editor in chief, John Sinclair
HarperCollins Publishers, 1995
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