Cita APA (7th ed.)

Willen, B., Strals, N., & Lupton, E. (2009). Lettering & type: Creating letters and designing typefaces. Princeton Architectural Press.

Cita Chicago (17th ed.)

Willen, Bruce, Nolen Strals, i Ellen Lupton. Lettering & Type: Creating Letters and Designing Typefaces. New York: Princeton Architectural Press, 2009.

Cita MLA (9th ed.)

Willen, Bruce, et al. Lettering & Type: Creating Letters and Designing Typefaces. Princeton Architectural Press, 2009.