TY  - BOOK
AU  - Abell,George O.(George Ogden)
TI  - Exploration of the universe
SN  - 030896657
U1  - 520 A141E 1975 
PY  - 1975///
CY  - London
PB  - Rinehart and Winston
KW  - Astronomy
KW  - Astronomie
KW  - Manuels
N1  - Include index
ER  -