TY  - BOOK
AU  - Varian, Hal R.
AU  - Shapiro, Carl
AU  - Varian, Hal R.
TI  - Economics of information technology: An introduction
T2  - The raffaele mattioli lecture series
SN  - 0-521-60521-0
U1  - 338.47004 
PY  - 2004///
CY  - New York
PB  - Cambridge University Press
ER  -