organised by Sira Institute ; editor, W. D. Lawson. organized by Sira Institute ; editor, T. L. Williams. organised by Sira Institute Limited. organised by the Welding Institute ; edited by P.T. Houldcroft. organised by Institute of Welding ...[et al.]. organised by The Institution of Engineers. organised by Sira Institute Ltd. as one of its OPTECH '78 events. organised by the Institute of Measurement and Control. organized by Swiss Federal Institute of Technology Lakusanne. organised by the Institute of Quality Assurance.