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Vecchio, S.D.: Out for a spin : a school librarian test drives 14 CD-ROM encyclopedias (1997)
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Hendley, T.: Digital mass storage options (1993)
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Terry, A.A.: Reference-linking : today's realities, tomorrow's promises (2001)
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Arnzen, M.A.: Cyber citations : documenting Internet sources presents some thorny problems (1996)
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Snavely, L.: Building the virtual reference shelf : how to get the most for your money (1997)
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