The unfinished nation :
a brief, interactive history of the American people /
Alan Brinkley.

APA Citation

Brinkley, A. (2005). The unfinished nation: a brief, interactive history of the American people. Boston: McGraw-Hill.

MLA Citation

Brinkley, Alan. The Unfinished Nation: a Brief, Interactive History of the American People. Boston: McGraw-Hill, 2005.

Warning: These citations may not always be complete (especially for serials).