《水经注·卷八》
蹼水又东流，与句读汇合。句读上口在句阳县东南承接淮水支渠，流经句阳县老城南面，就是《春秋》中的谷丘。
濮水又东与句渎合，读首受濮水枝渠于句阳县东南，径句阳县故城南。《春秋》之谷丘也。
Puzhui River flows east again, merging with Judou. The entrance of Judou is located in Chengyang County in the southeast, continuing the branch canal of Huai River, and passing through the old city of Chengyang County in the south, which is Guqiu in "Spring and Autumn".