History of technology - London: Mansell, 1999 - x, 190p. Vol. 15 (0-7201-2160-4)Vol. 20 (0-7201-2376-3)Vol. 21 (0-8264-4960-3) ISBN: 0-7201-2376-3 Subjects--Topical Terms: Science Subjects--Index Terms: Information technology Universal Decimal Class. No.: D 001(091) / N9