APA (7th ed.) Citation

Kelly, N., & Lacey, G. (2001). Modern world history for OCR specification 1937 (1. publ.). Heinemann.

Chicago Style (17th ed.) Citation

Kelly, Nigel, and Greg Lacey. Modern World History for OCR Specification 1937. 1. publ. Oxford: Heinemann, 2001.

MLA (9th ed.) Citation

Kelly, Nigel, and Greg Lacey. Modern World History for OCR Specification 1937. 1. publ. Heinemann, 2001.