TY  - BOOK
AU  - Crosby,Alfred W.
TI  - The Columbian exchange
SN  - 0837172284
PY  - 1973///
CY  - Westport, Conn.
PB  - Greenwood Press
KW  - Indians
KW  - Diseases
KW  - Agriculture
KW  - Medical geography
KW  - History
KW  - Biogeography
N1  - Includes index; Bibliography (p. 222-260)
ER  -