The blank day device in proposed plans for calendar reform
By: memorandum by Moses Hyamson, submitted to the League of nations and the Advisory and technical committee of the League of nations by the League for safeguarding the fixity of the Sabbath.
Contributors: League for safeguarding the fixity of the Sabbath against possible encroachment of calendar reform.
Publisher: [s.n.]
Published: 1931
Place of publication: New York
Language: eng
Number of pages: 27
Subjects: Calendar.
Notes: Cover-title.