TY  - BOOK
AU  - Ferguson,Dale C.
TI  - Introductory astronomy exercises
SN  - 0534125220
AV  - QB62.7 .F47 1990 
PY  - 1990///
CY  - Belmont, Calif.
PB  - Wadsworth Pub.
KW  - Astronomy
KW  - Laboratory manuals
KW  - Problems, exercises, etc
ER  -