宣化縣志 :三〇卷. [China : s.n.], 清乾隆2 [1737] 補附刋本.
see below
<a rel="nofollow" class="external free" href="https://iiif.lib.harvard.edu/manifests/view/drs:48163263">https://iiif.lib.harvard.edu/manifests/view/drs:48163263</a>