Cita APA (7a ed.)

Horton, W. (1994). The icon book: Visual symbols for computer systems and documentation. [S.n.].

Cita Chicago Style (17a ed.)

Horton, William. The Icon Book: Visual Symbols for Computer Systems and Documentation. Nueva York: [S.n.], 1994.

Cita MLA (9a ed.)

Horton, William. The Icon Book: Visual Symbols for Computer Systems and Documentation. [S.n.], 1994.