Petr Mikhaĭlovich Trofimov

• Arkhangelʹskai︠a︡ oblastʹ
• Ocherki ėkonomicheskogo razvitii︠a︡ Evropeĭskogo Severa Rossii
• Sot︠s︡ialisticheskoe prirodopolʹzovanie
• Zavod Krasnaia kuznitsa