Title: 5-oe Mezhdunarodnoe soveshchanie spet͡sialistov nat͡sionalʹnykh bibliotek sot͡sialisticheskikh st[r]an po voprosam svodnykh katalogov i mezhbibliotechnogo abonementa
Subjects: Congresses, Interlibrary loans, National libraries, Union Catalogs, Union catalogs
Places: Communist countries