Proceedings of the seventh British national conference on databases (BNCOD 7): / Heriot-Watt University, 12-14 July - Cambridge: Cambridge University Press, 1989 - 259p. - British Computer Society Workshop Series . ISBN: 0521382815 Subjects--Topical Terms: Information technology Subjects--Index Terms: Deductive databases Universal Decimal Class. No.: D 681.3:65.01](082.2) / M9