APA (7th ed.) Citation

Parsons Richard. (2006). Gcse Biology OCR Gateway Revision Guide. Coordination Group Publications.

Chicago Style (17th ed.) Citation

Parsons Richard. Gcse Biology OCR Gateway Revision Guide. England: Coordination Group Publications, 2006.

MLA (9th ed.) Citation

Parsons Richard. Gcse Biology OCR Gateway Revision Guide. Coordination Group Publications, 2006.

Warning: These citations may not always be 100% accurate.