Cita APA (7a ed.)

Orwig, C. (2009). Adobe Photoshop CS4 how-tos: 100 essential techniques (1st edition.). Adobe.

Cita Chicago Style (17a ed.)

Orwig, Chris. Adobe Photoshop CS4 How-tos: 100 Essential Techniques. 1st edition. Berkeley, Calif.: Adobe, 2009.

Cita MLA (9a ed.)

Orwig, Chris. Adobe Photoshop CS4 How-tos: 100 Essential Techniques. 1st edition. Adobe, 2009.