Irish, Marian Doris. The politics of American democracy / [by] Marian D. Irish [and] James W. Prothro. - 4th ed. - Englewood Cliffs, N.J. : Prentice-Hall, [1968] - xiii, 783 p. : ill. ; 25 cm. "Bibliographical essay": p. 725-748. Subjects--Geographic Terms: United States--Politics and government. Dewey Class. No.: 320.973 / IRP 1968