APA (7th ed.) Citation

Portal, G. H., Portal, R. M., & Rennell, J. R. R. (1894). The British mission to Uganda in 1893. E.Arnold.

Chicago Style (17th ed.) Citation

Portal, Gerald Herbert, Raymond Melville Portal, and James Rennell Rodd Rennell. The British Mission to Uganda in 1893. Lond.: E.Arnold, 1894.

MLA (8th ed.) Citation

Portal, Gerald Herbert, et al. The British Mission to Uganda in 1893. E.Arnold, 1894.