Cita APA

Schirmer, M., Diaz, R. J., Holhjem, K., Levenson, N., & Winge, C. (2013). A Sample of Seyfert-2 Galaxies with Ultraluminous Galaxy-wide Narrow-line Regions: Quasar Light Echoes? Web

Citación estilo Chicago

Schirmer, M., Ruben Joaquin Diaz, K. Holhjem, N. Levenson, and C. Winge. A Sample of Seyfert-2 Galaxies With Ultraluminous Galaxy-wide Narrow-line Regions: Quasar Light Echoes? 2013.

Cita MLA

Schirmer, M., et al. A Sample of Seyfert-2 Galaxies With Ultraluminous Galaxy-wide Narrow-line Regions: Quasar Light Echoes? 2013.