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4/ TAYLOR, C.J. (1953): The vegetation zones of the Gold Coast (Government Printer Accra). 5/ TAYLOR, C.J. (i960): Synecology and sylviculture in Ghana (Nelson, Edinbourgh)

. 6/ WALKER, H.O. (1957): Weather and climate of Ghana (Ghana Meterological Service Note No. 5-). 7/ WARD, W.E.P. (1948): A History of the Gold Coast (Methuen, London)

. 8/ WILLS, J.B. .(1962): Agriculture and Land use in Ghana (Oxford University Press).