Improve the calendar : what's wrong with it, how to fix it.

Contributor(s): Material type: TextTextPublisher: New York City : The World Calendar Association, [between 1950 and 1956?]Description: 11 pages : illustrations ; 21 cmContent type:
  • still image
  • text
Media type:
  • unmediated
Carrier type:
  • volume
Subject(s):