TY  - BOOK
AU  - Zeilik, Michael.
AU  - Smith, Elske.
AU  - Jacobs, kenneth C.
AU  - Jacobs, kenneth C.
TI  - Introductory astronomy and astrophysics
SN  - 0030044995.
U1  - 520 
PY  - 1986///
CY  - New York
PB  - Saunders College
KW  - Astronomy
KW  - Astrophusics
ER  -