Cita APA

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

Citación estilo Chicago

Althaus, Leandro Gabriel, Alejandro Hugo Corsico, Marcelo Miguel Miller Bertolami, Enrique García Berro, and S. O. Kepler. Evidence of Thin Helium Envelopes in PG 1159 Stars. 2008.

Cita MLA

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