Type, sign, symbol

MLA

Frutiger, A, M Besset, and E Ruder. Type, Sign, Symbol. Zürich: A.B.C. Edition, 1980.

APA

Frutiger, A., Besset, M., & Ruder, E. (1980). Type, sign, symbol. Zürich: A.B.C. Edition.

Chicago

Frutiger, A., M Besset, and E Ruder. Type, Sign, Symbol. Zürich: A.B.C. Edition, 1980.