周易義海撮要 : 一二卷 / 李衡撰. [China] : 通志堂, 清康熙19 [1680] 5册.
see below
<a rel="nofollow" class="external free" href="https://iiif.lib.harvard.edu/manifests/view/drs:15868211">https://iiif.lib.harvard.edu/manifests/view/drs:15868211</a>