Sociological foundations of librarianship 2026-02-15T12:21:07+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Shera, Jesse Hauk, 1903- (Ranganathan series in library science, 1970)