APA (7th ed.) Citation

Grey, T. (2009). Photoshop CS4 workflow: The digital photographer's guide. Wiley Publishing.

Chicago Style (17th ed.) Citation

Grey, Tim. Photoshop CS4 Workflow: The Digital Photographer's Guide. Indianapolis: Wiley Publishing, 2009.

MLA (9th ed.) Citation

Grey, Tim. Photoshop CS4 Workflow: The Digital Photographer's Guide. Wiley Publishing, 2009.

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