Degrees of flooding and location of economic studies in the 1931 flooded areas in the Yangtze and Hwai River Valleys, China : form surveys made during November, 1931   Creator:   南京大學。 農林學院。 農業經濟系。 China. National Flood Relief Commission China. Jiu ji shui zai wei yuan hui 中國。 九吉水在衛元惠 中国。 九吉水在卫元惠 Publication Date:   1931 Publisher:   China. Jiu ji shui zai wei yuan hui ( Shanghai ) Type:   Map Format:   1 colour map Source Institution:   SOAS University of London Holding Location:   SOAS University of London Subject Keyword:   Floods -- China 洪水 -- 中國 洪水 -- 中国 Yangtze River Valley (China) 長江流域（中國） Spatial Coverage:   China 中國 中国 Asia -- China -- Yangtze River Valley Asia -- China -- Huai River Valley Genre:   Map Language:   English Degrees of flooding and location of economic studies in the 1931 flooded areas in the Yangtze and Hwai River Valleys, China : form surveys made during November, 1931