«Whole Earth». Lunar Orbiter V p. 352. NASA, 08-08-1967. [Consulta: 24 desembre 2008]. «Clearly visible on the left side of the globe is the eastern half of Africa and the entire Arabian peninsula.»
T. Becker, L. Weller, L. Gaddis, D. Cook, B. Archinal, M. Rosiek, C. Isbell, T. Hare, R. Kirk, Lunar Orbiter Mosaic of the Moon, Lunar and Planetary Science XXXIX (2008).