Cita APA (7a ed.)

Johnson, S., & Roffe, G. (2016). Citizenship studies (OCR GCSE (9–1).). Hodder Education.

Cita Chicago Style (17a ed.)

Johnson, Steve, y Graeme Roffe. Citizenship Studies. OCR GCSE (9–1). London: Hodder Education, 2016.

Cita MLA (9a ed.)

Johnson, Steve, y Graeme Roffe. Citizenship Studies. OCR GCSE (9–1). Hodder Education, 2016.