TY  - CHAP
A1  - Crosby, A.W.
T1  - Smallpox
Y1  - 2008
DO  - 10.1017/CHOL9780521332866.190
A3  - Kiple, K.F.
T2  - The Cambridge world history of human disease
CY  - Cambridge
PB  - Cambridge University Press

ER  -