Masefield, G. B. (1972). A history of the colonial agricultural service. Clarendon Press.
Lua i Stíl Chicago (17ú heag.)Masefield, G. B. A History of the Colonial Agricultural Service. Oxford: Clarendon Press, 1972.
Lua MLA (8ú heag.)Masefield, G. B. A History of the Colonial Agricultural Service. Clarendon Press, 1972.
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