You searched for: “books that have served as sources of information for the compilations of the various calendar histories and modern usages of several chronological topics”
A unit related to: “books that have served as sources of information for the compilations of the various calendar histories and modern usages of several chronological topics”
Calendar or Calendars Bibliography
(books that have served as sources of information for the compilations of the various calendar histories and modern usages of several chronological topics)