APA (7th ed.) Citation

Alspach, J., & Richards, L. (1999). Teach yourself Photoshop 5 and 5.5. IDG Books Worldwide.

Chicago Style (17th ed.) Citation

Alspach, Jennifer, and Linda Richards. Teach Yourself Photoshop 5 and 5.5. Foster City, CA: IDG Books Worldwide, 1999.

MLA (8th ed.) Citation

Alspach, Jennifer, and Linda Richards. Teach Yourself Photoshop 5 and 5.5. IDG Books Worldwide, 1999.