TY  - BOOK
AU  - Simpson,Howard N.
TI  - Invisible armies: the impact of disease on American history 
SN  - 067252659X
U1  - 571.9 23
PY  - 1980///
CY  - Indianapolis
PB  - Bobbs-Merrill
KW  - Animal diseases
KW  - United States
KW  - History
KW  - Diseases and history
KW  - History, Military
KW  - To 1900
N1  - Includes index
ER  -