Gill, R. W. (1991). Basic rendering: Effective drawing for designers, artists, and illustrators. Thames and Hudson.
Chicago Style (17th ed.) CitationGill, Robert W. Basic Rendering: Effective Drawing for Designers, Artists, and Illustrators. London: Thames and Hudson, 1991.
MLA (9th ed.) CitationGill, Robert W. Basic Rendering: Effective Drawing for Designers, Artists, and Illustrators. Thames and Hudson, 1991.
Warning: These citations may not always be 100% accurate.