ScienceDirect (Online service) & Wedgwood, C. G. (1990). International electronics directory '90: The guide to European manufacturers, agents, and applications (Third edition.). Elsevier Advanced Technology.
Chicago Style (17th ed.) CitationScienceDirect (Online service) and C. G. Wedgwood. International Electronics Directory '90: The Guide to European Manufacturers, Agents, and Applications. Third edition. Oxford: Elsevier Advanced Technology, 1990.
MLA (9th ed.) CitationScienceDirect (Online service) and C. G. Wedgwood. International Electronics Directory '90: The Guide to European Manufacturers, Agents, and Applications. Third edition. Elsevier Advanced Technology, 1990.
Warning: These citations may not always be 100% accurate.