APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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