Herring, R. (1981). Hub. Viking Press.
Cita Chicago (17th ed.)Herring, Robert. Hub. New York: Viking Press, 1981.
Cita MLA (8th ed.)Herring, Robert. Hub. Viking Press, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)