TY  - BOOK
AU  - Calvin,Melvin
TI  - Chemical evolution: molecular evolution towards the origin of living systems on the earth and elsewhere 
SN  - 5198553420
PY  - 1969///
CY  - Oxford
PB  - Clarendon Press
KW  - Life
KW  - Origin
KW  - Geochemistry
KW  - Molecular biology
N1  - Includes bibliographies
ER  -