Pay and conditions of busmen employed by the Corporation of Wigan : presented to Parliament by the First Secretary of State and Secretary of State for Employment and Productivity and the Minister of Transport by Command of Her Majesty, December 1968 - National Board for Prices and Incomes; Great Britain. Dept. of Employment and Productivity; Great Britain. Ministry of Works and Planning (Report / National Board for Prices and Incomes, 1968)