APA-viite

Lewis, H. (1963). unionism and relative wages in the United States: An empirical inquiry. University of Chicago press.

Chicago-tyylinen lähdeviittaus

Lewis, H.G. Unionism and Relative Wages in the United States: An Empirical Inquiry. London: University of Chicago press, 1963.

MLA-viite

Lewis, H.G. Unionism and Relative Wages in the United States: An Empirical Inquiry. University of Chicago press, 1963.