Cita APA (7a ed.)
Steel, R. W., & Johnson, C. (2001). Sierra Leone, 1938: Journey through a vanished world. Ituri.
Cita Chicago Style (17a ed.)
Steel, Robert W., y Colin Johnson. Sierra Leone, 1938: Journey Through a Vanished World. Banbury, Oxon: Ituri, 2001.
Cita MLA (9a ed.)
Steel, Robert W., y Colin Johnson. Sierra Leone, 1938: Journey Through a Vanished World. Ituri, 2001.
Precaución: Estas citas no son 100% exactas.