Cita APA (7a ed.)

Ortiz, J., Sugerman, B., De La Cueva, I., Santos-Sanz, P., Duffard, R., Gil-Hutton, R., . . . Morales, N. Observation of light echoes around very young stars.

Cita Chicago Style (17a ed.)

Ortiz, J.L, B.E.K Sugerman, I. De La Cueva, P. Santos-Sanz, R. Duffard, R. Gil-Hutton, M. Melita, y N. Morales. Observation of Light Echoes Around Very Young Stars.

Cita MLA (8a ed.)

Ortiz, J.L, et al. Observation of Light Echoes Around Very Young Stars.