News of the Main Physical Observatory. 1920. № 1. 1920. № 1

Description
News of the Main Physical Observatory. - Petrograd: B. and., 1920. - .
1. Territory (collection).
Source of electronic copy: PB
Location of original: RGO
1920. № 1: 1920. № 1: Year 1. - Type. "Kadima", 1920. -48 p. : ill., tab. -
On the region: 11th State. type.
Bibliography. in the text and a substring. note
.
1. Territory (collection).
Source of electronic copy: PB
Location of original: RGO
Publisher Тип. "Кадима"

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