A Dozen Properties of the Number Twelve

Title: A Dozen Properties of the Number Twelve
Author: Dozenal Society of America
Year: 1192
Subject: Prof. Schiffman examines some number theoretical properties of the dozen.
http://www.dozenal.org/drupal/sites_bck/default/files/db27309_0.pdf

Prof. Schiffman examines some number theoretical properties of the dozen.