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Keen, E.M.: ¬The Aberystwyth index languages tests (1973) 9.06

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Author: Keen, E.M.

Keen, E.M.: Prospects for classification suggested by evaluation tests (1976) 9.06

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Author: Keen, E.M.

Keen, E.M.: On the generation and searching of entries in printed subject indexes (1977) 9.06

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Author: Keen, E.M.