TY  - BOOK
AU  - Hawking, Stephen
AU  - Sagan, Carl.
AU  - Title.
TI  - A brief history of time
SN  - 553173251
AV  - 115 
CY  - USA
KW  - Black holes (Astronomy)
KW  - Cosmology
KW  - Space and time
N1  - Includes glossary and index
ER  -