TY  - BOOK
AU  - Oster, Ludwig.
TI  - Modern astronomy
SN  - 0816265232
AV  - QB45 .O76
U1  - 520 
PY  - 1973///
CY  - San Francisco
PB  - Holden-Day
KW  - Astronomy
N1  - Includes bibliographical references and index
ER  -