101-21

Editor: Ralph Beard
Associate Editor:
Volume: 10
Issue: 2
Whole Number: 21
Year: 1170
Subject: Essig’s “Douze Notre Dix Futur”; Henry Martyn Parkhurst’s work
http://www.dozenal.org/drupal/sites_bck/default/files/DuodecimalBulletinIssue102-web_0.pdf