4X1-98

Editor: Michael deVlieger
Associate Editor:
Volume: 4X
Issue: 1
Whole Number: 98
Year: 11E5
Subject: History of the DSGB; Osburn’s Number base study; Clayton’s Dozenal nomenclature
http://www.dozenal.org/drupal/sites_bck/default/files/DuodecimalBulletinIssue4a1_0.pdf