APA (7th ed.) Zitazioa
ebrary, Inc, Hornemann, F., Laing, A. G., & Bovill, E. W. (2010). Missions to the Niger. Ashgate.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Friedrich Hornemann, Alexander Gordon Laing, eta E. W. Bovill. Missions to the Niger. Farnham, Surrey, England ; Burlington, VT: Ashgate, 2010.
MLA (9th ed.) Zitazioa
ebrary, Inc, et al. Missions to the Niger. Ashgate, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.