Dixon, Robert Galloway, 1920- American government : basic documents and materials / by Robert G. Dixon and Elmer Plischke. - New York : Van Nostrand, c1950 - xx, 420 p. : illus., maps, facsims. ; 26 cm. - Van Nostrand political science series . Includes Index. Subjects--Geographic Terms: United States--Politics and government--Sources. Dewey Class. No.: 342.73 / DIA 1950