Style de citation APA

Langer, W. L. (1969). Political and social upheaval, 1832 - 1852. Harper & Row.

Style de citation Chicago

Langer, William Leonard. Political and Social Upheaval, 1832 - 1852. New York [u.a.]: Harper & Row, 1969.

Style de citation MLA

Langer, William Leonard. Political and Social Upheaval, 1832 - 1852. Harper & Row, 1969.