Cita APA (7a ed.)

Atkin, W. (1962). Pencil techniques in modern design. Reinhol.

Cita Chicago Style (17a ed.)

Atkin, William. Pencil Techniques in Modern Design. New York: Reinhol, 1962.

Cita MLA (9a ed.)

Atkin, William. Pencil Techniques in Modern Design. Reinhol, 1962.