TY  - BOOK
AU  - Osterbrock, D. E.
TI  - Astrophysics of gaseous nebulae and active galactic nuclei
SN  - 0-935702-22-9
PY  - 1989///
CY  - California
PB  - University Science
KW  - Active galactic nuclei
KW  - Astrophysics
KW  - Gaseous nebulae
KW  - Nabulae
KW  - Seyfert galaxies
ER  -