Great Britain Civil Service Commission. (1951). Pamphlet containing the question papers of the open competition held in July, 1950. His Majesty's Stationery Off.
Citazione stile Chigago Style (17a edizione)Great Britain Civil Service Commission. Pamphlet Containing the Question Papers of the Open Competition Held in July, 1950. London: His Majesty's Stationery Off, 1951.
Citatione MLA (9a ed.)Great Britain Civil Service Commission. Pamphlet Containing the Question Papers of the Open Competition Held in July, 1950. His Majesty's Stationery Off, 1951.
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