TY  - BOOK
AU  - Kaufman,William J.
TI  - Discovering the universe
SN  - 071672054x
U1  - 520 
PY  - 1989///
CY  - New York
PB  - W. H. Freeman
KW  - Astronomy
KW  - Cosmology
N1  - 500-599; 520
ER  -