(1990). The Europa world year book 1990: Vol. 2 Kenya-Zimbabwe (31st ed.). Europa Publications.
芝加哥风格引文The Europa World Year Book 1990: Vol. 2 Kenya-Zimbabwe. 31st ed. Bedford Square, London: Europa Publications, 1990.
MLA引文The Europa World Year Book 1990: Vol. 2 Kenya-Zimbabwe. 31st ed. Europa Publications, 1990.
警告：这些引文格式不一定是100％准确.