A guide to the Library of Congress classification

 Chan, Lois Mai.;

Englewood, Colo. : : Libraries Unlimited, , 1999

CQ's politics in America 2004: the 108th congress

 Hawkings, David; Nutting, Brian;

Washington, D.C. : CQ Press , 2003

Davy Crockett

 Sullivan, George;

New York : Scholastic Reference, , 2001

The U.S. Senate : from deliberation to dysfunction

 Loomis, Burdett A.;

Washington, D.C. : CQ Press , 2012