Cita APA (7a ed.)

Frutiger, A., Besset, M., Ruder, E., & Schneebeli, H. R. (1980). Type, sign, symbol. ABC.

Cita Chicago Style (17a ed.)

Frutiger, Adrian, Maurice Besset, Emil Ruder, y Hans Rudolf Schneebeli. Type, Sign, Symbol. Zurich: ABC, 1980.

Cita MLA (9a ed.)

Frutiger, Adrian, et al. Type, Sign, Symbol. ABC, 1980.