APA Style

Charles, C. et al (2013). Physics Matters GCE 'O' Level workbook Teacher's Edition 4th Edition (4th edition). Singapore: Marschall Cavendish Education.

MLA Style

Charles, Chew. et al. "Physics Matters GCE 'O' Level workbook Teacher's Edition 4th Edition". 4th edition Singapore: Marschall Cavendish Education, 2013. Reference.