Cita APA (7a ed.)

Gran Bretaña. (1971). Towards the middle school. Her Majesty's Stationery Office.

Cita Chicago Style (17a ed.)

Gran Bretaña. Towards the Middle School. London: Her Majesty's Stationery Office, 1971.

Cita MLA (9a ed.)

Gran Bretaña. Towards the Middle School. Her Majesty's Stationery Office, 1971.