TY  - BOOK
AU  - Parker,Barry R.
TI  - Concepts of the cosmos: an introduction to astronomy 
SN  - 0155128507
AV  - QB45 .P284 1984
U1  - 520 19
PY  - 1984///
CY  - San Diego
PB  - Harcourt Brace Jovanovich
KW  - Astronomy
N1  - Includes bibliographies and index
ER  -