(1956). Graphis annual: International advertising art. Amstutz um Herdeg, Graphis Press.
Cita Chicago Style (17a ed.)Graphis Annual: International Advertising Art. Zurich: Amstutz um Herdeg, Graphis Press, 1956.
Cita MLA (9a ed.)Graphis Annual: International Advertising Art. Amstutz um Herdeg, Graphis Press, 1956.
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