Gill, R. W. Basic rendering: Effective drawing for designers, artists and illustrators.
استشهاد بنمط شيكاغوGill, Robert W.. Basic Rendering: Effective Drawing for Designers, Artists and Illustrators.
MLA استشهادGill, Robert W.. Basic Rendering: Effective Drawing for Designers, Artists and Illustrators.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.