Roberts, K. L. (1940). Oliver Wiswell. Doubleday, Doran & Company Inc.
Cita Chicago (17th ed.)Roberts, Kenneth Lewis. Oliver Wiswell. New York: Doubleday, Doran & Company Inc, 1940.
Cita MLA (9th ed.)Roberts, Kenneth Lewis. Oliver Wiswell. Doubleday, Doran & Company Inc, 1940.
Atenció: Aquestes cites poden no estar 100% correctes.