APA Edition Citation

John Widdowson, John Smith, & Roger Knill. (2001). GCSE geography in focus. John Murray.

Chicago Edition Citation

John Widdowson, John Smith, and Roger Knill. GCSE Geography in Focus. London: John Murray, 2001.

MLA Edition Citation

John Widdowson, et al. GCSE Geography in Focus. John Murray, 2001.

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