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.
171-31
Editor:
Ralph Beard
Associate Editor:
Volume:
17
Issue:
1
Whole Number:
31
Year:
1178
Subject:
Patterns for El; Duodecimal Geometry; Beard’s “Duodecimal Perspectives”