Cita APA (7th ed.)
Gibson, C. (1967). Spain in America. Harper & Row.
Cita Chicago (17th ed.)
Gibson, Charles. Spain in America. New York: Harper & Row, 1967.
Cita MLA (9th ed.)
Gibson, Charles. Spain in America. Harper & Row, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.