TY  - BOOK
AU  - Ponnamperuma, Cyril (ed.)
TI  - Exobiology (vol-23): north holland research monographs frontiers of biology
T2  - 23
SN  - 0 7204 7123 0 and 0 444 10110 1
U1  - 573.5 
PY  - 1972///
CY  - Amsterdam
PB  - North - Holland Publishing Company
KW  - Biology
KW  - Biological evolution
N1  - 147A / 25.10.1972; Astrobiology; Biology; Space Science
ER  -