Cita APA (7a ed.)

Guitton, P., & Guiu, S. (2009). A homage to typography. Index Book.

Cita Chicago Style (17a ed.)

Guitton, Pedro, y Silvia Guiu. A Homage to Typography. Barcelona: Index Book, 2009.

Cita MLA (9a ed.)

Guitton, Pedro, y Silvia Guiu. A Homage to Typography. Index Book, 2009.