The National Geographic Magazine map of China and its territories
<bdi><a href="https://en.wikipedia.org/wiki/en:John_George_Bartholomew" class="extiw" title="w:en:John George Bartholomew"><span title="British cartographer (1860-1920)">John George Bartholomew</span></a>
</bdi>
1912-10
<a rel="nofollow" class="external text" href="http://ocp.hul.harvard.edu/dl/expeditions/005493444">Harvard University Library</a><br><a rel="nofollow" class="external text" href="http://mapstalk.blogspot.com/2009/11/blog-post_5.html">1912年10月國家地理雜誌</a>