title: [From the bibliographer's files (XXVII). 75 years ago].
mesh_terms: D001317:Austria; D001634:Bibliographies as Topic; D049673:History, 20th Century; D009885:Ophthalmology / Q000266:history*; D011044:Poland; D012425:Russia (Pre-1917)
vernacular_title: Z teki szperacza-bibliografa (XXVII). Przed 75 laty.