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Carlton, T.: I want an electronic bookstore! (1993)
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Burg, B.; Kautzman, A.M.: Virtual knowledge : the best buys in 1998 CD-ROM encyclopedias (1998)
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Gilmore, F.L.: Compton's Multimedia Encyclopedia (1992)
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Grolier releases 1999 Grolier Multimedia Encyclopedia (1998)
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Pack, T.: Digital circles of knowledge (1995)
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