1965

First lectures in political sociology / translated, with an introd. by Alfred de Grazia.

    Michels, Robert, 1876-1936.
New York : Harper,        173 pages ; 23 cm. 1965

    1949

First lectures in political sociology / translated, with an introd. by Alfred de Grazia.

    Michels, Robert, 1876-1936.
Minneapolis, University of Minnesota Press        1 online resource (173 pages) 1949

    1930

Italien von heute : politische und wirtschaftliche Kulturgeschichte von 1860 bis 1930 / Robert Michels.

    Michels, Robert, 1876-1936.
Zürich : Orell Füssli,        xi, 410 pages : illustrations, map ; 25 cm. 1930

    1962

Political parties; a sociological study of the oligarchical tendencies of modern democracy. / Translated by Eden and Cedar Paul. Introd. by Seymour Martin Lipset.

    Michels, Robert, 1876-1936.
New York : Collier Books,        379 pages ; 18 cm 1962

    1968

Political parties : a sociological study of the oligarchical tendencies of modern democracy / Robert Michels ; translated by Eden and Cedar Paul ; introduction by Seymour Martin Lipset.

    Michels, Robert, 1876-1936.
New York : Free Press,        379 pages ; 21 cm 1968

    1915

Political parties : a sociological study of the oligarchical tendencies of modern democracy / Robert Michels ; translated by E. and C. Paul.

    Michels, Robert, 1876-1936.
Glencoe, Ill. : Free Press, 1915.        434 pages 1915

    2000

Political Parties : a Sociological Study of the Oligarchical Tendencies of Modern Democracy / Robert Michels.

    Michels, Robert, 1876-1936.
[Place of publication not identified] Batoche Books,        1 online resource 2000

    1914

Sexual ethics : a study of borderland questions / Robert Michels ; translated from the Italian by Eden & Cedar Paul.

    Michels, Robert, 1876-1936.
London : George Allen & Unwin,        xv, 296 pages ; 19 cm. 1914