APA
Wakefield R., Munsey D., . (1950). The arc of the Thirtieth Meridian between the Egyptian Frontier and Latitude 13 45`, 1935-1940. Khartoum: The Sudan Government.
Chicago
Wakefield R.C, Munsey D.F, . 1950. The arc of the Thirtieth Meridian between the Egyptian Frontier and Latitude 13 45`, 1935-1940. Khartoum: The Sudan Government.
Harvard
Wakefield R., Munsey D., . (1950). The arc of the Thirtieth Meridian between the Egyptian Frontier and Latitude 13 45`, 1935-1940. Khartoum: The Sudan Government.
MLA
Wakefield R.C, Munsey D.F, . The arc of the Thirtieth Meridian between the Egyptian Frontier and Latitude 13 45`, 1935-1940. Khartoum: The Sudan Government. 1950.