《徐霞客游记·滇游日记二十九》
既然这样，那么澜沧江、礼社江虽然同样流经定边县，已分在东西两面，一同下流到景东，分流在东、西边远地区相隔就更远了。
然则澜沧、礼社虽同经定边，已有东西之分，同下至景东，东西鄙分流愈远。
In this case, although the Lancang River and the Liceshe River both flow through Dingbian County, they are already divided into the east and west sides, and they both flow into Jingdong, and the tributaries in the east and west are even farther apart.