Unknown author<span style="display: none;">Unknown author</span>
神宮徴古館農業館編『神宮徴古館陳列品図録』神宮徴古館農業館、1941年1月30日。<a href="https://en.wikipedia.org/wiki/National_Diet_Library" class="extiw" title="en:National Diet Library">National Diet Library</a> Digital Collections: Persistent ID <a rel="nofollow" class="external text" href="http://dl.ndl.go.jp/info:ndljp/pid/1140524">1140524</a>