TY  - BOOK
AU  - Sagan, Carl
AU  - Leonard, Jonathan Norton
TI  - <Planets>
U1  - 5 
PY  - 1967///
CY  - New York
PB  - Time life books
KW  - Natural sciences
KW  - Pure sciences
KW  - Astronomy
KW  - black holes
KW  - Asteroids
KW  - Astrology
KW  - Astrophysics
KW  - Comets
KW  - Meteorites
KW  - Meteors
KW  - Planetariums
KW  - Planets
KW  - Galaxies
KW  - Constellations
KW  - pulsars
KW  - Solar system
KW  - Physical science
KW  - Universe
ER  -