I︠U︡bileĭnai︠a︡ sessii︠a︡ Akademii nauk SSSR
by V. L. Komarov, Akademii︠a︡ nauk SSSR
AnniversariesScienceHistoryAkademii︠a︡ nauk SSSR
Writing a summary for young readers…
For young readers
Book data: Open Library
by V. L. Komarov, Akademii︠a︡ nauk SSSR
Book data: Open Library