《宋史·列传·卷八十七》
王韶又说： 渭源到秦州一带，良田弃置无人耕种的有上万顷。希望设置市易司，以求商贾之利，将经商所得拿来治理农田。 皇上采纳了他的意见，改任著作佐郎，仍命王韶提举。
韶又言： 渭源至秦州，良田不耕者万顷，愿置市易司，颇笼商贾之利，取其赢以治田。 帝从其言，改著作佐郎，仍命韶提举。
Wang Shao said again: “There are tens of thousands of hectares of good fields abandoned and uncultivated in the area from Weiyuan to Qinzhou. I hope to establish a market to attract merchants and use the profits to manage the farmland.” The emperor adopted his suggestion, changed his position to zuolang of the Zuozuo, and still ordered Wang Shao to take charge.