Title: Maslov--kaluzhskiĭ kraeved
Subjects: Historians, Biography, Local History
Places: Soviet Union, Kaluzhskai︠a︡ oblastʹ (Russia), Kaluga (Kaluzhskai︠a︡ oblastʹ, Russia)
People: Nikolaĭ Mikhaĭlovich Maslov (1890-1967)