TY  - BOOK
AU  - Ehrensvard,Gosta Carl Henrik
TI  - Life: origin and development 
U1  - 577 
PY  - 1962///
CY  - Chicago
PB  - The University of Chicago Press
KW  - Life
KW  - Origin
KW  - Biological diversity
KW  - Ecological heterogeneity
KW  - Animal-plant relationship
ER  -