Cita APA (7a ed.)

Althaus, L. G., Córsico, A. H., Miller Bertolami, M. M., García-Berro, E., & Kepler, S. O. (2008). Evidence of thin helium envelopes in PG 1159 stars.

Cita Chicago Style (17a ed.)

Althaus, Leandro Gabriel, Alejandro Hugo Córsico, Marcelo Miguel Miller Bertolami, E. García-Berro, y S. O. Kepler. Evidence of Thin Helium Envelopes in PG 1159 Stars. 2008.

Cita MLA (8a ed.)

Althaus, Leandro Gabriel, et al. Evidence of Thin Helium Envelopes in PG 1159 Stars. 2008.