APA (7th ed.) Citation

Ellen Bowness, Gemma Hallam, & Sharon Keekey. (2006). GCSE Biology: The Revision Guide Higher Level. CGP.

Chicago Style (17th ed.) Citation

Ellen Bowness, Gemma Hallam, and Sharon Keekey. GCSE Biology: The Revision Guide Higher Level. CGP, 2006.

MLA (9th ed.) Citation

Ellen Bowness, et al. GCSE Biology: The Revision Guide Higher Level. CGP, 2006.