APA (7th ed.) Citation

Andrew, G., Auden, J. B., & Wright, E. P. (1955). Geological map of the southern Sudan. Sudan Survey Dept..

Chicago Style (17th ed.) Citation

Andrew, G., John Bicknell Auden, and E. P. Wright. Geological Map of the Southern Sudan. Khartoum: Sudan Survey Dept., 1955.

MLA (9th ed.) Citation

Andrew, G., et al. Geological Map of the Southern Sudan. Sudan Survey Dept., 1955.