Gaya APA

Lidwell, W. et al (2015). The Pocket Universal Principles Of Design: 150 Essential Tools for Architects, Artists, Designers, Developers, Engineers, Inventors, And Makers . Massachusets: Rockport Publishers.

Gaya MLA

Lidwell, William. et al. "The Pocket Universal Principles Of Design: 150 Essential Tools for Architects, Artists, Designers, Developers, Engineers, Inventors, And Makers". Massachusets: Rockport Publishers, 2015. book.