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Dozenal Society of America
Promoting base twelve and alternative base mathematics
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The Dozenal Society of America
The DSA is a voluntary, nonprofit education corporation, organized for the conduct of research and education of the public in the use of dozenal (also called duodecimal or base-twelve) in calculations, mathematics, weights and measures, and other branches of pure and applied science.

271-43

Editor: Patricia Zirkel
Associate Editor:
Volume: 27
Issue: 1
Whole Number: 43
Year: 1192
Subject: Schiffman’s Group theoretic application of number 12; Minutes 1976, 1977
http://www.dozenal.org/../sites_bck/default/files/DuodecimalBulletinIssue271-web_0.pdf