Cita APA (7th ed.)
Young, E. W., & Mottram, B. H. (1977). East Africa ; physical, regional and human (3rd ed.). Arnold.
Cita Chicago (17th ed.)
Young, Eric William, i B. H. Mottram. East Africa ; Physical, Regional and Human. 3rd ed. London: Arnold, 1977.
Cita MLA (9th ed.)
Young, Eric William, i B. H. Mottram. East Africa ; Physical, Regional and Human. 3rd ed. Arnold, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.