TY  - BOOK
AU  - Hartmann, William K.
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 534079385
SN  - 2
PY  - 1987///46
CY  - Belmont, Calif.
PB  - Wadsworth Pub. Co.
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Astronomy
N1  - Includes index; Bibliography: p. 523-534; 5
ER  -