A?African economies were a?retardeda by their specialisation in primary products for exporta?. Discuss.

i need direct quotes as citations as well all in harvard style please.

Referencing Requirements:
referencing follow strictly harvard style, please.a?
P.J.Cain and A.G. Hopkins, British Imperialism 1688-2000 [2002] chapter 24: a?Playing the Gamea in Tropical Africa, 1914-40.
a? Michael Cowen and Robert Shenton, a?Bankers, Peasants and Land in British West Africa 1905-1937a, Journal of Peasant Studies 19, 1.
a? Jeff Grischow, a?Corruptions of Development in the Countryside of the Northern Territories of the Gold Coast, 1927-57a, Journal of Peasant Studies 26, 1.
a? M.P.K.Sorrenson, Land Reform in the Kikuyu Country
a? David Throup, The Economic and Social Origins of Mau Mau, chapter 3 a?Problems of Kikuyu Agriculturea.
a? R.J.M. Swynnerton, a?A Plan to Intensify the Development of African Agriculturea, Department of Agriculture [Nairobi, 1954].
. Bill Freund, The Making of Contemporary Africa.
a? Frederick Cooper, Africa since 1940, chapter 5: Development and disappointment, 1945-2000
a? Crawford Young, The end of the post-colonial state in Africa? Reflections on changing African political dynamics, African Affairs, January 2004.
a? David Hyde,a?Paying for the Emergency by Displacing the Settlersa: Global Coffee and Rural Restructuring in Late Colonial Kenyaa, Journal of Global History a?Commodities of Empirea special issue, Volume 4, 2009.
a? David Hyde, Undercurrents to Independence: Plantation Struggles in Kenyaas Central Province 1959-60, Journal of Eastern African Studies, 2010.
There is some guidance for the work, thank you very much.