Cita APA (7a ed.)

Ryan, P., Anastas, A., Gabri, R., & Sauerländer, K. (2011). Two Is Not a Number. Hatje Cantz Verlag.

Cita Chicago Style (17a ed.)

Ryan, Paul, Ayreen Anastas, Rene Gabri, y Katrin Sauerländer. Two Is Not a Number. Ostfildern: Hatje Cantz Verlag, 2011.

Cita MLA (8a ed.)

Ryan, Paul, et al. Two Is Not a Number. Hatje Cantz Verlag, 2011.