Hanington, B. M., & Martin, B. (2019). Universal methods of design : 125 ways to research complex problems, develop innovative ideas, and design effective solutions / Bruce Hanington, Bella Martin: 125 ways to research complex problems, develop innovative ideas, and design effective solutions (Expanded and revised edition.). Rockport Publishers.
Chicago Style (17th ed.) CitationHanington, Bruce M., and Bella Martin. Universal Methods of Design : 125 Ways to Research Complex Problems, Develop Innovative Ideas, and Design Effective Solutions / Bruce Hanington, Bella Martin: 125 Ways to Research Complex Problems, Develop Innovative Ideas, and Design Effective Solutions. Expanded and revised edition. Beverly, MA: Rockport Publishers, 2019.
MLA (9th ed.) CitationHanington, Bruce M., and Bella Martin. Universal Methods of Design : 125 Ways to Research Complex Problems, Develop Innovative Ideas, and Design Effective Solutions / Bruce Hanington, Bella Martin: 125 Ways to Research Complex Problems, Develop Innovative Ideas, and Design Effective Solutions. Expanded and revised edition. Rockport Publishers, 2019.