Duffield, S., & Storey, R. (1992). The Trades Union Congress Archive: 1920-60. Coventry: University of Warwick Library.
Cita Chicago (17th ed.)Duffield, Sarah, i Richard Storey. The Trades Union Congress Archive: 1920-60. Coventry: University of Warwick Library, 1992.
Cita MLA (8th ed.)Duffield, Sarah, i Richard Storey. The Trades Union Congress Archive: 1920-60. Coventry: University of Warwick Library, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.