The Mississippi and the making of a nation :from the Louisiana purchase to today / Stephen E. Ambrose, Douglas G. Brinkley; photographs by Sam Abell

 Ambrose, Stephen E.; Brinkley, Douglas G.; Abell, Sam;

Washington, D.C. : National Geographic , 2002

Lewis and Clark : voyages of discovery

 Ambrose, Stephen E.; Abell, Sam;

[Amerika] : National Geographic Society , 2002