Dyfyniad APA

ebrary, Inc, & Greenberg, S. (2012). Sketching user experiences. Elsevier.

Dyfyniad Arddull Chicago

ebrary, Inc, and Saul Greenberg. Sketching User Experiences. Waltham, Mass.: Elsevier, 2012.

Dyfyniad MLA

ebrary, Inc, and Saul Greenberg. Sketching User Experiences. Elsevier, 2012.

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