Cita APA (7th ed.)

Herdeg, W. (1977). Packaging: An international survey of package design. Graphis.

Cita Chicago (17th ed.)

Herdeg, Walter. Packaging: An International Survey of Package Design. Zurich: Graphis, 1977.

Cita MLA (9th ed.)

Herdeg, Walter. Packaging: An International Survey of Package Design. Graphis, 1977.