APA (7th ed.) Citation

Guptill Arthur L. (1976). Rendering in pen and ink. Watson-Guptill.

Chicago Style (17th ed.) Citation

Guptill Arthur L. Rendering in Pen and Ink. Watson-Guptill, 1976.

MLA (8th ed.) Citation

Guptill Arthur L. Rendering in Pen and Ink. Watson-Guptill, 1976.

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