Williams, M. A. J. (2021). When the Sahara was green: How our greatest desert came to be. Princeton University Press.
Chicagoスタイル(17版)引用形式Williams, M. A. J. When the Sahara Was Green: How Our Greatest Desert Came to Be. Princeton: Princeton University Press, 2021.
MLA(9版)引用形式Williams, M. A. J. When the Sahara Was Green: How Our Greatest Desert Came to Be. Princeton University Press, 2021.
警告: この引用は必ずしも正確ではありません.