Antzeko izenburuak: Nation of nations :
Gaia: History.
- Nation of nations : a narrative history of the American republic /
- Teachers, schools, and society /
- Charles Schwab : how one company beat Wall Street and reinvented the brokerage industry /
- From slavery to freedom : a history of African Americans /
- The battle for social security : from FDR's vision to Bush's gamble /
- Julian Robertson : tiger in the land of bulls and bears /