APA (7th ed.) Citation

(1998). Adobe photoshop 4.0: An introduction to digital images. Prentice-Hall.

Chicago Style (17th ed.) Citation

Adobe Photoshop 4.0: An Introduction to Digital Images. Upper Saddle River, N.J: Prentice-Hall, 1998.

MLA (9th ed.) Citation

Adobe Photoshop 4.0: An Introduction to Digital Images. Prentice-Hall, 1998.

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