TY  - BOOK
AU  - Crosby Alfred W
TI  - Ecological imperialism :  The bilogical expansion o   
U1  - U:(G:5).5.N00<--D, M6 
PY  - 1986///
CY  - Cambridge
PB  - Cambridge University Press        
KW  - Modern - Geography
N1  - Studies environment and history
ER  -