Duchacek, Ivo D., 1913- Power maps: comparative politics of constitutions / Ivo D. Duchacek. - Santa Barbara, Calif.: ABC-Clio, 1973. - xiv, 252 p.: illus.; 23 cm. - Studies in international and comparative politics ; 2. . Bibliography: p. 241-249. ISBN: 0874361141 Subjects--Topical Terms: Constitutional law.Comparative government.