TY  - BOOK
AU  - Ley, Willy
TI  - Watchers of the skies: an informal history of astronomy from babylon to the space age 
U1  - 520.9 
PY  - 1963///
CY  - London
PB  - London Sidgwick & Jackson Ltd.
KW  - A history of astronomy
KW  - Astronomy
N1  - Includes bibliographical references and index
ER  -