Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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