Abdullah, R., & Hubner, R. (2006). Pictograms, icons and signs: A guide to information graphics. Thames and Hudson.
Dyfyniad Arddull ChicagoAbdullah, Rayan, and Roger Hubner. Pictograms, Icons and Signs: A Guide to Information Graphics. Londres: Thames and Hudson, 2006.
Dyfyniad MLAAbdullah, Rayan, and Roger Hubner. Pictograms, Icons and Signs: A Guide to Information Graphics. Thames and Hudson, 2006.
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