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Lev Bertenson
Lechebnyi͡a vody, gri͡azi i morskīi͡a kupanʹi͡a v Rossīi i zagranit͡seĭ
Lechebnyi︠a︡ vody, gri︠a︡zi i morskīi︠a︡ kupanʹi︠a︡ v Rossīi i zagranit︠s︡eĭ
Mineralʹnyi︠a︡ vody, gri︠a︡zi i morskīi︠a︡ kupanʹi︠a︡ v Rossīi i za granit︠s︡ei︠u︡
Sanitarno-vrachebnoe di͡elo na gornykh promyslakh T͡Sarstva Polʹskago