TY  - BOOK
AU  - Abell,George O.
AU  - Morrison,David
AU  - Wolff,Sidney C.
TI  - Exploration of the universe
T2  - Saunders golden sunburst series
SN  - 0030051436
AV  - QB45 .A16 1987
U1  - 520 19
PY  - 1987///
CY  - Philadelphia
PB  - Saunders College Publishing
KW  - Astronomy
N1  - Includes index; Bibliography: p. 692-698
ER  -