TY  - BOOK
AU  - Shipman, Harry L
TI  - Black holes, quasars, and the universe
SN  - 0-395-24342-4
PY  - 1976///
CY  - Bostan
PB  - Houghton Mifflin
KW  -  Black holes 
KW  -  Quasars 
KW  -  Universe
KW  - Astronomy and astrophysics thesaurus 
ER  -