APA (7th ed.) Citation

Williams, M. A. J., & Adamson, D. A. (1982). A Land between two Niles: Quaternary geology and biology of the Central Sudan. Balkema.

Chicago Style (17th ed.) Citation

Williams, M. A. J., and D. A. Adamson. A Land Between Two Niles: Quaternary Geology and Biology of the Central Sudan. Rotterdam: Balkema, 1982.

MLA (9th ed.) Citation

Williams, M. A. J., and D. A. Adamson. A Land Between Two Niles: Quaternary Geology and Biology of the Central Sudan. Balkema, 1982.