TY  - BOOK
AU  - Crosby, Alfred W.
TI  - The Colombian exchange: biological and cultural consequences of 1492  
SN  - 0837158214
U1  - 574.5 
PY  - 1972///
CY  - Westport, Connecticut
PB  - Greenwood Press
KW  - Indians
KW  - Health and hygiene
KW  - Agriculture
KW  - Biogeography
KW  - Medical geography
KW  - History
N1  - Includes bibliographical references (p.222-260) and index
ER  -