APA
Widgren M., Sutton J. E. G., British Institute in Eastern Africa & Stockholms universitet. (2004). Islands of intensive agriculture in Eastern Africa. London: British Institute in Eastern Africa.
Chicago
Widgren Mats, Sutton John E G, British Institute in Eastern Africa and Stockholms universitet. 2004. Islands of intensive agriculture in Eastern Africa. London: British Institute in Eastern Africa.
Harvard
Widgren M., Sutton J. E. G., British Institute in Eastern Africa and Stockholms universitet. (2004). Islands of intensive agriculture in Eastern Africa. London: British Institute in Eastern Africa.
MLA
Widgren Mats, Sutton John E G, British Institute in Eastern Africa and Stockholms universitet. Islands of intensive agriculture in Eastern Africa. London: British Institute in Eastern Africa. 2004.