TY  - BOOK
AU  - Abell,George O.
TI  - Realm of the universe
SN  - 003058504X
AV  - QB45.A163 1984 
U1  - 523 
PY  - 1984///
CY  - Philadelphia
PB  - Saunders College Pub.
KW  - Astronomy
N1  - Includes index
ER  -