TY  - BOOK
AU  - Sagan,Carl
TI  - Cosmos
SN  - 8432036269
AV  - QB44.2 .S23518 1980
U1  - 520 
PY  - 1987///
CY  - Barcelona
PB  - Editorial Planeta
KW  - Astronomy
KW  - Popular works
KW  - Local
N1  - Includes index; Bibliography: p. [350]-355
ER  -