TY  - BOOK
AU  - Koestler,Arthur
AU  - Butterfield, Herbert
TI  - The sleepwalkers: a history of man's changing vision of the universe 
AV  - BL 245 K613
PY  - 1968///, c1964
CY  - Harmondsworth, Middlesex
PB  - Penguin
N1  - Incluye índice
ER  -