APA Citation

Sandqvist, A., & Ray, T. P. (1993). Central Activity in Galaxies: From Observational Data to Astrophysical Diagnostics (1st ed. 1993.). Berlin, Heidelberg: Springer Berlin Heidelberg.

Chicago Style Citation

Sandqvist, Aage, and Thomas P. Ray. Central Activity in Galaxies: From Observational Data to Astrophysical Diagnostics. 1st ed. 1993. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993.

MLA Citation

Sandqvist, Aage, and Thomas P. Ray. Central Activity in Galaxies: From Observational Data to Astrophysical Diagnostics. 1st ed. 1993. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993.