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Kaczor, S.: Reference service in an electronic age : a view from two worlds based on an SLA program (1995)
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Whitlatch, J.B.: Reference services : research methodologies for assessment and accountability (1992)
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Olivieri, R.: Academic publishing in transition : the academic publishers response (1995)
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Garcia-Suarez, V.M.: ¬El servicio de referencia y el referencista contemporaneos : retos y oportunidades (1995)
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Danielson, E.S.: Ethics and reference services (1997)
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