Railway companies (staff) : return showing (A) the number of persons employed by the several railway companies of Great Britain during the week ended 8th March, 1930, and (B) the rates of pay, and the average weekly salary or wage of, and the average weekly payments to, certain selected grades during the week ended 8th March, 1930, compared with the week ended 9th March, 1929.
Great Britain.Ministry of Transport,issuing body.
Great Britain.His Majesty's Stationery Office.