Cita APA (7a ed.)

Pérez, J., Tissera, P. B., Padilla, N., Alonso, S., & García Lambas, D. R. (2009). Effects of mergers and galaxy interactions at intermediate densities in the SDSS-DR4.

Cita Chicago Style (17a ed.)

Pérez, Josefa, Patricia Beatriz Tissera, N. Padilla, S. Alonso, y D. R. García Lambas. Effects of Mergers and Galaxy Interactions at Intermediate Densities in the SDSS-DR4. 2009.

Cita MLA (8a ed.)

Pérez, Josefa, et al. Effects of Mergers and Galaxy Interactions at Intermediate Densities in the SDSS-DR4. 2009.