TY  - BOOK
AU  - Crosby,Alfred W.
TI  - Ecological imperialism: the biological expansion of Europe, 900-1900 
SN  - 9780521456906:
U1  - 304.2 21st
PY  - 1986///
CY  - Cambridge [Cambridgeshire], New York
PB  - Cambridge University Press
KW  - HUMAN ECOLOGY
KW  - EUROPEANS
KW  - MIGRATIONS
KW  - HUMAN GEOGRAPHY
KW  - BIOGEOGRAPHY
N1  - Includes index; Bibliography: p. 312-360
ER  -