Cita APA

Weidmann, W. A., & Gamen, R. C. (2010). Central stars of planetary nebulae: New spectral classifications and catalogue. Web

Citación estilo Chicago

Weidmann, W. A., and Roberto Claudio Gamen. Central Stars of Planetary Nebulae: New Spectral Classifications and Catalogue. 2010.

Cita MLA

Weidmann, W. A., and Roberto Claudio Gamen. Central Stars of Planetary Nebulae: New Spectral Classifications and Catalogue. 2010.