The Thames and Hudson manual of rendering with pen and ink.

MLA

Gill, Robert W. The Thames and Hudson Manual of Rendering with Pen and Ink. Revised and enlarged ed. London: Thames and Hudson, 1992.

APA

Gill, R. W. (1992). The Thames and Hudson manual of rendering with pen and ink. Revised and enlarged ed. London: Thames and Hudson.

Chicago

Gill, Robert W., The Thames and Hudson Manual of Rendering with Pen and Ink. Revised and enlarged ed. London: Thames and Hudson, 1992.