Lua APA (7ú heag.)
Austen, R. A., & Derrick, J. (1999). Middlemen of the Cameroons Rivers: The Duala and their hinterland, c.1600-c.1960. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)
Austen, Ralph A., agus Jonathan Derrick. Middlemen of the Cameroons Rivers: The Duala and Their Hinterland, C.1600-c.1960. Cambridge ; New York: Cambridge University Press, 1999.
Lua MLA (9ú heag.)
Austen, Ralph A., agus Jonathan Derrick. Middlemen of the Cameroons Rivers: The Duala and Their Hinterland, C.1600-c.1960. Cambridge University Press, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.