Her Majesty's Stationery Office. (1968). Manual of police Driving instruction.
Citazione stile Chigago Style (17a edizione)Her Majesty's Stationery Office. Manual of Police Driving Instruction. London, 1968.
Citatione MLA (8a ed.)Her Majesty's Stationery Office. Manual of Police Driving Instruction. 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.