๐ Library
๐
December 2
๐ Polygon Media Ltd.
๐ English
Chemical Age December 24/31, 1971: <a href="https://archive.org/search.php?query=sim_pubid%3A926%20AND%20volume%3A103" rel="nofollow">Volume 103</a>, Issue 2736-2737.<br />Digitized from <a href="https://archive.org/details/sim_raw_scan_IA1574609-05/page/n299" rel="nofollow">IA1574609-05</a>.<br />P