Istorii͡a︡ kalendari͡a︡ i ego predstoi͡a︡shchai͡a︡ reforma.
Edition: [Izd. 3., perer. i dop.
Publisher: Lenizdat
Published: 1962
Place of publication: Leningrad]
Language: rus
Number of pages: 130
Subjects: Calendar.; Calendar reform.