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Galvin, T.J.: Current problems in reference service (1971)
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Galvin, T.J.: Teaching reference with case studies : an interim report (1965)
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Galvin, T.J.: Case studies and case method (1970)
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Galvin, T.J.: Convergence or divergence in education for the information professions : an opinion paper (1995)
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Singh, S.: Ranganathan and reference services (1992)
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Fishman, D.L.: Managing the virtual reference desk : how to plan an effective reference e-mail system (1998)
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Koshik, I.; Okazawa, H.: ¬A conversation analytic study of actual and potential problems in communication in library chat reference interactions (2012)
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