Laybourn, K. (1972). The attitude of Yorkshire trade unions tto the economic and social problems of the great depression, 1873-1896. University of Lancaster.
Citace podle Chicago (17th ed.)Laybourn, Keith. The Attitude of Yorkshire Trade Unions Tto the Economic and Social Problems of the Great Depression, 1873-1896. England: University of Lancaster, 1972.
Citace podle MLA (8th ed.)Laybourn, Keith. The Attitude of Yorkshire Trade Unions Tto the Economic and Social Problems of the Great Depression, 1873-1896. University of Lancaster, 1972.
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