APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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