Rainfall frequencies : Historical variability of rainfall in the African East Sahel of Sudan : implications for development / John F. Hermance
2013?
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Rainfall frequencies -- Australia. : Australian rainfall and runoff : flood analysis and design / [edited by A. Pattison ... and others]
1977
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Rainfall frequencies -- Sahel -- History : Historical variability of rainfall in the African East Sahel of Sudan : implications for development / John F. Hermance