1. There is a complex pricing structure. The four-volume set costs £220 ($325) by itself, but £135 if purchased together with Dewey for Windows. A single workstation licence for the latter costs £270, with £100 for each annual replacement disc. A LAN or multiple-copy site licence costs £335 per year. (Prices from OCLC Europe.)
2.
2. Mills, J. and Broughton, Vanda (1996) Bliss bibliographic classification. 2nd ed. Class R: Politics and public administration. London: Bowker-Saur, ISBN 1 85739 077 6
3.
3. New, Gregory and Trotter, Ross. (1996) Revising the life sciences for Dewey 21 . Catalogue & Index, 121, (Autumn), 1-6
