books by author
Steve Langfield
Collins IGCSE Essentials - Edexcel International GCSE Chemistry: Revision Guide
Essentials of GCSE OCR Science for Specification B: Revision and Classroom Companion (2012 Exams Only)
Revision plus OCR B (Gateway Science) Workbook (Lonsdale GCSE Revision Plus)
Revision Plus OCR Additional Science B(Gateway Science) Revision guide (OCR Science Revision): Revision and Classroom Companion (Lonsdale GCSE Revision Plus)
Revision Plus GCSE OCR Additional Science B Workbook: Gateway Science (Revision Plus OCR Additional Applied Science B (Lonsdale GCSE Revision Plus)
