Cita APA (7a ed.)

Weidmann, W. A., Méndez, R. H., & Gamen, R. C. (2015). Improved spectral descriptions of planetary nebulae central stars.

Cita Chicago Style (17a ed.)

Weidmann, W. A., R. H. Méndez, y Roberto Claudio Gamen. Improved Spectral Descriptions of Planetary Nebulae Central Stars. 2015.

Cita MLA (8a ed.)

Weidmann, W. A., et al. Improved Spectral Descriptions of Planetary Nebulae Central Stars. 2015.