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ARBA guide to subject encyclopedias and dictionaries (1997) 0.01

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Footnote: Rez. in: ZfBB 45(1998) H.1, S.110-111 (E. Tröger); IfB 7(1999) H.1/4, S.71 (K. Schreiber)

ARBA guide to biographical resources 1986-1997 (1998) 0.01

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Footnote: Rez. in: ZfBB 46(1999) H.5, S.411-412 (E. Tröger)

CD-ROM information products : the evaluative guide (1: an evaluative guide and directory) (1990-) 0.01

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Footnote: Rez. in: IfB 1(1993) H.3/4, S.153-155