TY  - GEN
AU  - SPINOZA, Benedictus de, 1632-1677.
TI  - The ethics: preceded by 'on the improvement of the understanding'
AV  - B 3973 .E5 E4 
PY  - 1949///
CY  - New York
PB  - Hafner Publishing Co.
KW  - Ethics
N1  - Translation of: Ethica
ER  -