Jim Field
| 30 July 1980 | New Advances in Bugging Technology Socialist Press no. 208, 30 July 1980 |
Socialist Press, Trotskyism Today, Woman Worker, Class Fighter and the Trotskyist International Liaison Committee, 1975–1984
| 30 July 1980 | New Advances in Bugging Technology Socialist Press no. 208, 30 July 1980 |