TY  - BOOK
AU  - Hartmann,William K.
TI  - Astronomy: the cosmic journey 
SN  - 0534095763
AV  - QB 45 .H32 1989
U1  - 520 19
PY  - 1989///
CY  - Belmont
PB  - Wadsworth Pub. Co.
KW  - Astronomy
KW  - Cosmic journey
N1  - Includes index; Bibliography: p. 673-683
ER  -