TY  - BOOK
AU  - O'Callaghan,Bryn
TI  - An illustrated history of the USA
SN  - 0-582-74921-2
U1  - 973/Oc1i 
PY  - 1990///
CY  - [Harlow, Gran Bretaña] 
PB  - [Pearson Education Limited]
KW  - ESTADOS UNIDOS - HISTORIA
ER  -