Porter, T., & Goodman, S. (1991). Design drawing techniques for architects, graphic designers and artists. Butterworth Architecture.
Chicago-referens (17:e uppl.)Porter, Tom, och Sue Goodman. Design Drawing Techniques for Architects, Graphic Designers and Artists. Oxford: Butterworth Architecture, 1991.
MLA-referens (9:e uppl.)Porter, Tom, och Sue Goodman. Design Drawing Techniques for Architects, Graphic Designers and Artists. Butterworth Architecture, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.