Cita APA (7th ed.)
Steel, R. W., & Johnson, C. (2001). Sierra Leone, 1938: Journey through a vanished world. Ituri.
Cita Chicago (17th ed.)
Steel, Robert W., i Colin Johnson. Sierra Leone, 1938: Journey Through a Vanished World. Banbury, Oxon: Ituri, 2001.
Cita MLA (9th ed.)
Steel, Robert W., i Colin Johnson. Sierra Leone, 1938: Journey Through a Vanished World. Ituri, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.