Cita APA (7th ed.)
ebrary, Inc, & Riley, S. G. (1995). Biographical dictionary of American newspaper columnists. Greenwood Press.
Cita Chicago (17th ed.)
ebrary, Inc, i Sam G. Riley. Biographical Dictionary of American Newspaper Columnists. Westport, Conn.: Greenwood Press, 1995.
Cita MLA (9th ed.)
ebrary, Inc, i Sam G. Riley. Biographical Dictionary of American Newspaper Columnists. Greenwood Press, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.