TY  - BOOK
AU  - Goldstein, Bernard R.
TI  - The astronomy of Levi Ben Gerson (1288-1344)
SN  - 0387961321
U1  - 521.924 
PY  - 1985///
CY  - New York
PB  - Springer
KW  - Astronomy -- Early works to 1800
KW  - Jewish astronomy
ER  -