Cita APA (7a ed.)

Baumann, E., Servet, J., Baumann, E., & Servet, J. (2007). Introduction.

Cita Chicago Style (17a ed.)

Baumann, Eveline, J.M Servet, Eveline Baumann, y J.M Servet. Introduction. 2007.

Cita MLA (8a ed.)

Baumann, Eveline, et al. Introduction. 2007.