1. Korpi , ‘Industrial Relations and Industrial Conflict’.
2. Headey , ‘Trade Unions and National Wage Policies’.
3. The Impact of Socialism on Work Stoppages;Gifford;Industrial Relations,1974
4. Cronin James Eugene , Strikes in Britain, 1888–1974: A Statistical and Historical Analysis (Ph.D. dissertation, Brandeis University, 1977)