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📁 Mining Journal 1969-05-23: Vol 272 Iss 6979

📂 Library 📅 1969-05-23 🏛 Mining Communications Ltd 🌐 English

Mining Journal 1969-05-23: <a href="https://archive.org/search.php?query=sim_pubid%3A671%20AND%20volume%3A272" rel="nofollow">Volume 272</a>, Issue 6979.<br />Digitized from <a href="https://archive.org/details/sim_raw_scan_IA1641823-04/page/n57" rel="nofollow">IA1641823-04</a>.<br />Previous issue:

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