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Dewdney, P.; Michell, G.: Oranges and peaches : understanding communication accidents in the reference interview (1996)
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Dewdney, P.; Michell, G.: Asking 'why' questions in the reference interview : a theoretical justification (1997)
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Michell, G.: Does PRECIS have feet of clay? : problems with the universality of the role operators (1979)
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