《明史·志·卷六十三》
工部尚书朱衡请求把开通洳口河的主张下发各大臣周密地谋划。
工部尚书朱衡请以开泇口河之说下诸臣熟计。
Zhu Heng, the Minister of the Ministry of Industry, asked for the proposal to open the Ru Kou River to be sent down to all the ministers for careful planning.