The presidency and the political system / Michael Nelson, editor. - 7th ed. - Washington, D.C. : CQ Press, c2003. - xii, 544 p. : ill. ; 23 cm. ISBN: 1568026730 (pbk. : alk. paper) LCCN: 2002009277 Subjects--Topical Terms: Presidents--United States. LC Class. No.: JK516 / .P639 2003 Dewey Class. No.: 352.2309