Cita APA (7th ed.)
Skrabec, Q. R. (2008). William McKinley, apostle of protectionism. Algora Pub..
Cita Chicago (17th ed.)
Skrabec, Quentin R. William McKinley, Apostle of Protectionism. New York: Algora Pub., 2008.
Cita MLA (9th ed.)
Skrabec, Quentin R. William McKinley, Apostle of Protectionism. Algora Pub., 2008.
Atenció: Aquestes cites poden no estar 100% correctes.