<a href="https://en.wikipedia.org/wiki/Seal_of_the_President_of_the_United_States" class="extiw" title="w:Seal of the President of the United States">Seal</a> of the <a href="//commons.wikimedia.org/wiki/President_of_the_United_States" title="President of the United States">President of the United States</a>
Unknown author<span style="display: none;">Unknown author</span>
1960-07-04
Extracted from the title page of PDF document at <a rel="nofollow" class="external free" href="https://web.archive.org/web/20060627234741/https://www.whitehouse.gov/nsc/nss.pdf">https://web.archive.org/web/20060627234741/https://www.whitehouse.gov/nsc/nss.pdf</a>