At head of title: Akademii͡a nauk SSSR. Chekhoslovat͡skai͡a akademii͡a nauk. Sovetsko-chekhoslovat͡skai͡a komissii͡a po sotrudnichestvu v oblasti obsh...
At head of title: Akademii͡a nauk SSSR. Chekhoslovat͡skai͡a akademii͡a nauk. Sovetsko-chekhoslovat͡skai͡a komissii͡a po sotrudnichestvu v oblasti obshchestvennykh nauk.