Best of Soviet SF is a 4-book series with 4 primary works first released in 1925 with contributions by Alexander Belyaev, Arkady Strugatsky, Аркадий Стругацкий, Борис Стругацкий, Boris Strugatsky, and Theodore Sturgeon.
1925 • 7 Readers • 157 pages • 5
1979 • 6 Readers • 217 pages • 3.7
1979 • 1 Reader • 297 pages
1974 • 4 Readers • 253 pages • 4.3