Political parties :
a sociological study of the oligarchical tendencies of modern democracy /
by Robert Michels ;
translated by Eden & Cedar Paul.

APA Citation

Michels, R. (1959). Political parties: a sociological study of the oligarchical tendencies of modern democracy. New York: Dover Publications.

MLA Citation

Michels, Robert, 1876-1936. Political Parties: a Sociological Study of the Oligarchical Tendencies of Modern Democracy. New York: Dover Publications, 1959.

Warning: These citations may not always be complete (especially for serials).