Cita APA (7a ed.)

Follis, J., & Hammer, D. (1979). Architectural signing and graphics. Whitney Library of Design.

Cita Chicago Style (17a ed.)

Follis, John, y Dave Hammer. Architectural Signing and Graphics. New York: Whitney Library of Design, 1979.

Cita MLA (9a ed.)

Follis, John, y Dave Hammer. Architectural Signing and Graphics. Whitney Library of Design, 1979.