Cita APA (7th ed.)

Porter, T. (1980). Manual of graphic techniques for architects, graphic designers, and artists. Astragal Books.

Cita Chicago (17th ed.)

Porter, Tom. Manual of Graphic Techniques for Architects, Graphic Designers, and Artists. London: Astragal Books, 1980.

Cita MLA (9th ed.)

Porter, Tom. Manual of Graphic Techniques for Architects, Graphic Designers, and Artists. Astragal Books, 1980.