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Subject cataloging manual : Subject headings (1991)
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Orgren, C.F.: Cooperative reference service (1994)
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Hedin, L.; Mering, M.; Pitts, L.M.: Newspapers : yesterday, today, tomorrow (1998)
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Quinn, B.: Improving the quality of telephone reference services (1995)
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Lever, A.J.: BC veelzijdig instrument : gebruiksmogelijkheden van de Nederlandse Basisclassificatie (1994)
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