The almanac of American politics 2002: the senators, the representatives and the governors

 Barone, Michael; Cohen, Richard E.; Cook Jr., Charles E.;

Washington, D.C. : national Journal Group , 2001

Guide to congress

 A Division of Congressional Quarterly Inc.;

Washington, D.C. : CQ Press , 2000

Lobbying congress: how the system works

 Wolpe, Bruce C.; Levine, Bertram J.;

Washington, D.C. : CQ Press , 1996

How congress works :a look at the legislative branch / Ruth Tenzer Feldman

 Feldman, Ruth Tenzer;

Minneapolis : Lerner Publications , 2004

the u.s house of. representatives

 Dubbois, Muriel L.;

Mankato, Minnesota : Capstone Press , 2004

Cogress A to Z

 Congressional Quarterly, inc.;

Washington, D.C. : CQ Press , 2008

Guide to congress volume I-II

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Washington, D.C. : CQ Press , 2000