Willen, B., Strals, N., & Lupton, E. (2009). Lettering & type: Creating letters and designing typefaces. Princeton Architectural Press.
芝加哥风格引文Willen, Bruce, Nolen Strals, 与 Ellen Lupton. Lettering & Type: Creating Letters and Designing Typefaces. New York: Princeton Architectural Press, 2009.
MLA引文Willen, Bruce, et al. Lettering & Type: Creating Letters and Designing Typefaces. Princeton Architectural Press, 2009.
警告：这些引文格式不一定是100％准确.