Cita APA (7a ed.)

Sheppard, C., Campos, J., Escalera, J., & Ledesma, S. Three-zone pupil filters.

Cita Chicago Style (17a ed.)

Sheppard, C.J.R, J. Campos, J.C Escalera, y S. Ledesma. Three-zone Pupil Filters.

Cita MLA (8a ed.)

Sheppard, C.J.R, et al. Three-zone Pupil Filters.