Dahl, Robert A., 1915-2014. A preface to democratic theory. - [Chicago] University of Chicago Press [1956] - 155 p. illus. 21 cm. - Charles R. Walgreen Foundation lectures . LCCN: 56006642 Subjects--Topical Terms: Democracy. LC Class. No.: JC423 / .D25 1956 Dewey Class. No.: 321.8