Use of ceramics in valves symposium 1965 / Held Under the Auspices of the British Ceramic Research Association, Queens Road, Penkhull, Stoke-o-Treant, om March 29-30yh, 1965 - Manchester: Henry Blacklock 7 Co. ltd. 1965 - xi, 222p. Subjects--Topical Terms: Chemical technology Universal Decimal Class. No.: 666.3/.7:621.385(082.2) / K5