On vacation of the Academy of Sciences to study the fields of radioactive minerals in Russia.February 23 - March 3.

On vacation of the Academy of Sciences to study the fields of radioactive minerals in Russia.February 23 - March 3 / Council of Ministers.- 1912. -13 l .. - (Council of Ministers .. Inventory Inventory No. 8. 1912.).-Science and education.Film..I. Council of Ministers ..Electronic copy source: RGIAOriginal storage place: RGIA F.1276 op.8 d.482