MLA

Branczyk, Alexander, et al. Emotional Digital: a Sourcebook of Contemporary Typographics. London: Thames & Hudson, 1999.

APA

Branczyk, A., Nachtwey, J., Nehl, H., Schlaich, S., & Siebert, J. (1999). Emotional digital: a sourcebook of contemporary typographics. London: Thames & Hudson.

Chicago

Branczyk, Alexander, Jutta Nachtwey, Heike Nehl, Sibylle Schlaich, and Jürgen Siebert. Emotional Digital: A Sourcebook of Contemporary Typographics. London: Thames & Hudson, 1999.