GAIR, A. (1994). Drawing: A step-by step guide to drawing techniques. New Holland Publishers.
Cita Chicago (17th ed.)GAIR, Angela. Drawing: A Step-by Step Guide to Drawing Techniques. New Holland Publishers, 1994.
Cita MLA (9th ed.)GAIR, Angela. Drawing: A Step-by Step Guide to Drawing Techniques. New Holland Publishers, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.