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John A. Hargreaves

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Status and Potential of Aquaculture in the Caribbean
Bradford (Clayton Heights) 1932: Yorkshire Sheet 216.10 (Old Ordnance Survey Maps of Yorkshire)
Environmental Best Management Practices for Aquaculture
Halifax in Old Picture Postcards
Liberal Reform and Industrial Relations: J.H. Whitley (1866-1935), Halifax Radical and Speaker of the House of Commons
Liberal Reform and Industrial Relations J. H. Whitley (1866-1935) Halifax Radical and Speaker of the House of Commons
Slavery in Yorkshire Richard Oastler and the Campaign Against Child Labour in the Industrial Revolution
Liberal Reform and Industrial Relations: J. H. Whitley , Halifax Radical and Speaker of the House of Commons
Halifax (North) 1930: Yorkshire Sheet 231.05 (Old Ordnance Survey Maps of Yorkshire)