Longman dictionary of the English language
Longman, 1984
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Longman dictionary of contemporary English
Longman, 1989
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Rosenthal, Marilyn S.
Longman photo dictionary
Longman Inc., 1987
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McAlpin, Janet
Longman: Dictionary skills handbbook
England: Longman Group, 1988,
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Adam, J.H.
Longman dictionary of business English
York Press, 1989
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