TY  - BOOK
AU  - Zwirn, Jerrold,
TI  - Congressional publications: A research guide to legislation, budgets, and treaties 
SN  - 0872873587
AV  - JK1067 Z85
PY  - 1983///
CY  - Littleton, colorado
PB  - Libraries unlimited
KW  - Estados Unidos
KW  - Congress
KW  - Bibliografia
KW  - Servicios de informacion
ER  -