1. Soderzhite masterskuiu v chistote, otkryvaĭte okna: chistota i svezhiĭ vozdukh--zashchita ot chakhotki (tuberkuleza) Publication: [Moskva?] : Narkomzdrava, [19--] Subject(s): Tuberculosis, Pulmonary -- prevention & controlWorkplaceVentilationShoes
