APA (7th ed.) Citation

Martín i Roig, G. (2005). Line and shading in drawing (1st U.S. ed.). Barron's Educational Series.

Chicago Style (17th ed.) Citation

Martín i Roig, Gabriel. Line and Shading in Drawing. 1st U.S. ed. Hauppauge, NY: Barron's Educational Series, 2005.

MLA (8th ed.) Citation

Martín i Roig, Gabriel. Line and Shading in Drawing. 1st U.S. ed. Barron's Educational Series, 2005.

Warning: These citations may not always be 100% accurate.