APA (7th ed.) Citation

Lockard, W. K. (1991). Drawing techniques for designers: Advocating line and tone drawings. Pepper Pub..

Chicago Style (17th ed.) Citation

Lockard, William Kirby. Drawing Techniques for Designers: Advocating Line and Tone Drawings. Tucson, Ariz.: Pepper Pub., 1991.

MLA (9th ed.) Citation

Lockard, William Kirby. Drawing Techniques for Designers: Advocating Line and Tone Drawings. Pepper Pub., 1991.