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Allen, B.; Allen, G.: Cognitive abilities of academic librarians and their patrons (1993)
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Allen, B.: Topic knowledge and online catalog search formulation (1991)
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Allen, L.: Alphabetical subject access, LCSH and a non-traditional approach (1981)
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Pernat, M.: Developing a reference telephone inquiries service (1994)
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Dearie, T.N.; Perez, A.J.: Traditional access to the library via telephone service (1992)
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