APA (7th ed.) Citation

Horton, W. (1994). The icon book: Visual symbols for computer systems and documentation. Wiley.

Chicago Style (17th ed.) Citation

Horton, William. The Icon Book: Visual Symbols for Computer Systems and Documentation. New York u.a: Wiley, 1994.

MLA (9th ed.) Citation

Horton, William. The Icon Book: Visual Symbols for Computer Systems and Documentation. Wiley, 1994.