books by author
Ron Pickering

Cambridge Biology IGCSE® Revision Guide (Cambridge Igcse Revision Guides)
Science for Common Entrance: Chemistry Answers
Science for Common Entrance: Biology Answers
Science for Common Entrance: Physics Answers

So You Really Want to Learn Science Book 1: A Textbook for Key Stage 2 and Common Entrance

Complete Biology for Cambridge IGCSE (R): Third Edition
