TY  - BOOK
AU  - Carl Sagan
AU  -  Jonathan Norton Leonard, 
TI  - Planets: life science library
U1  - 500 
PY  - 1967///
CY  - Nederland
PB  - Time-Life Internatinal (Nederland) N.V.
KW  - General Sciences
N1  - Carl Sagan & Jonathan Norton Leonard: Planets: life science library.  Nederland.  Time-Life Internatinal (Nederland) N.V., 1967.--(500SAG)
ER  -