Martin, B., & Hanington, B. (2012). Universal methods of design: 100 ways to research complex problems, develop innovative ideas, and design effective solutions (1a. ed.). Rockport Publishers.
Chicago-čujuhus (17. p.)Martin, Bella, juo Bruce Hanington. Universal Methods of Design: 100 Ways to Research Complex Problems, Develop Innovative Ideas, and Design Effective Solutions. 1a. ed. Beverly Hills: Rockport Publishers, 2012.
MLA-čujuhus (9. p.)Martin, Bella, juo Bruce Hanington. Universal Methods of Design: 100 Ways to Research Complex Problems, Develop Innovative Ideas, and Design Effective Solutions. 1a. ed. Rockport Publishers, 2012.
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